Left 4 Dead 2 Full Game Bugs / Glitches list

[Yasutoko]

Thank you, mods .

Dear users,
I would thank you on your information on bugs.

But I would like to ask the following.
If you are experiencing an issue, please try to take a screenshot of this and try to go into detail on what you did or were doing when this occured or how to recreate this issue, to help valve solve the possible issue much faster.

I shall also try to strive to keep this thread alive and make it more appealable.
Oh, and, if you see a fault by me somewhere, don't hesitate to PM me, or point it out to me in the thread! .

And lets all hope Valve looks into the thread also, ofcourse .

-----

Explainatory for the colour code :

Text This is the bug.
Text This is the bug's explainatory.
Text This is a possible fix and unconfirmed by valve fix.
Text This is when Valve will have fixed an issue.
Text This is the confirmed information.

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Performance Issues

Stuttering when tank arrives/Shooting at SI.

People are experiencing stuttering during gameplay while the tank is on the screen.

Possible fix : None. If you know a possible fix, please let me know.
Solved by valve : Confirmed

Confirmed by :
http://forums.steampowered.com/forum....php?t=1029003
http://forums.steampowered.com/forum....php?t=1029012
http://forums.steampowered.com/forum....php?t=1030964
Postmanmanman
Piez

Audio Bug: Loss of Mic Volume Master Control.
SOLVED. Please use Possible Fix 1 if you have windows 7.

Changing mic volume in game also changes the mic volume in windows master volume.

Possible fix : In Windows go into the Control Panel then into the Sound options. Once you've got that window open, click on the Communications tab. From there change "Reduce the volume of other sounds by 80%" to "Do Nothing". Note : this comes standard in Windows 7 as set to : Reduce the volume of other sounds by 80% ". As I ( Yasutoko ) cannot find it in my Vista I can not confirm this if it's in Vista also. Thanks to : pressyre
Possible fix 2 : If you have TF2, start that up first, then start L4D2 again. Thanks to M.S.G
Solved by valve : Unconfirmed.

Confirmed by :
Manticoremtg
Pressyre
Also other threads have been made for this but can't seem to locate them.

Audio Bug: Microphone Looping.

Microphone becomes unmuted in windows volume control on map change. Only way to fix is to alt tab out and remute through windows master volume.

Possible fix :
"Go into your config file located in
"\Steam\steamapps\common\left 4 dead 2\left4dead2\cfg/config"
on XP (not sure about Win7 or Vista), open it and find the line that says
voice_mixer_mute "0"
and change that zero too a 1.
Thanks to : T-zakjeZ
Solved by valve : Unconfirmed.

Confirmed by :
Manticoremtg
OhYeah
Kingcars66
Sick_of_this
Yatta
Angrypasta
Lalittle

Performance drop for people with Multicore ATI GPUs/SLI Nvidia and 64Bit OS.

Every time the map changes, performance for people with multicore ATI GPUs/Nvidia SLI GPU's and 64-bit OS's drop to unplayable levels

Possible fix : Alt-tab out of game, then back in (original post)
Possible fix 2 : This one is for Nvidia users. If you are running driver 195.xx, try downgrading to 191.07 WHQL. Note this does not mean it will be fixed, but is a possible temporary fix. Thanks to Beowulf_ .
Solved by valve : Unconfirmed.

Confirmed by :

Hieno Kaveri @ http://forums.steampowered.com/forum...6&postcount=75
0hYeah's friend @ http://forums.steampowered.com/forum...&postcount=106
Gunslinger1969 @ http://forums.steampowered.com/forum...&postcount=136
efour @ http://forums.steampowered.com/forum...&postcount=144
biship @ http://forums.steampowered.com/forum...&postcount=190
deadspeedv @ http://forums.steampowered.com/forum...&postcount=268
Kirisu
Climhazzardous http://www.youtube.com/watch?v=aYJkpZn1kKM
Biship
Lag

Rare bug : Audio Output decreases on map change.

The audio output for some people decreases automatically after a map changes to the next.
You have to manually go to your audio console and slide the slider up again for audio to be heard.

Possible Fix : None. If you know a possible fix, please let me know.
Solved by valve : Unconfirmed.

Confirmed by :
Seira @ http://bildr.no/view/528185
Phamain

Errors and Crashes.

Microsoft Visual C++ Error.

At the end of the map and it's loading to another map, users would crash and get this error.

Possible fix : Lower your texture models to Normal or Low. Note, though this might not solve the issue all together.
Possible fix 2 : Update your Windows Vista.
SP 1: http://www.microsoft.com/downloads/d...displaylang=en

SP 2: http://www.microsoft.com/downloads/d...displaylang=en
Solved by valve : Unconfirmed.

Confirmed by :
http://forums.steampowered.com/forum....php?t=1028888
http://forums.steampowered.com/forum....php?t=1028970
http://forums.steampowered.com/forum...1#post12063977

Crash Without Error.

Potential fix for crashes all together : Link
Thanks to : Bishop7

A lot of players are now getting a crash at random without an error message.

Possible fix : put -lv in your game runpath. Warning! This removes all the gore out of the game. Note, this does not solve the issue all together.
Possible fix 2 :
1. Close Steam if running
2. Go to your Steam\Steamapps folder
3. Delete left 4 dead 2 client.ncf
4. Delete client.dll from your steam\steamapps\common\left 4 dead 2\left4dead2\bin folder
5. Start Steam
6. Right click on L4D2 and validate the game
7. After validation is complete, right click on the game and choose Install
8. Let it redownload the file and install it properly
Credit goes out to : atrpunk08
Solved by valve : Unconfirmed.

Confirmed by :
http://forums.steampowered.com/forum....php?t=1028844
http://forums.steampowered.com/forum....php?t=1028924
http://forums.steampowered.com/forum....php?t=1029081
http://forums.steampowered.com/forum....php?t=1030939
Peacekeeper00

Game crashes after intro

For some players the game just crashes after the intro has stopped playing.
If they use a workaround to skip the intro, it crashes instantly.

Possible fix :
Link
Simply open up a new text document, paste the correct entries for your operating system and save it as "l4d2reg.reg" for example, then just run the .reg file. Observe that this is at your own risk. It's a reg fix floating around the web and while it have fixed the problem for some without creating any other problems I still recommend doing a backup of your registry before trying this. Thanks to : Roxarn
Solved by valve : Unconfirmed.

Confirmed by :
http://forums.steampowered.com/forum....php?t=1028907
http://forums.steampowered.com/forum....php?t=1028914
http://forums.steampowered.com/forum....php?t=1030930
prioryjk

Engine Failing ( IVP .. )

So far a few people are experiencing this. It seems to be related to Versus and scavange play mode. When they switch sides. Also it seems that it isn't related only to Versus or Scavange, but also in Campaign

Possible fix : None. If you know a possible fix, please let me know.
Solved by valve : Unconfirmed.

Confirmed by :
http://forums.steampowered.com/forum....php?t=1028901
http://forums.steampowered.com/forum...1#post12063722
http://forums.steampowered.com/forum....php?t=1028988
http://forums.steampowered.com/forum....php?t=1028961
http://forums.steampowered.com/forum....php?t=1029052
http://forums.steampowered.com/forum....php?t=1029106
Frazzlet
Kirisu

Couldn't CRC client side dll bin\client.dll

People would get this error while joining a server.

Possible Fix : 1)Navigate to
C:\Program Files\Steam\steamapps\common\left 4 dead 2\left4dead2\bin
2)Locate file : client.dll.old
3)Rename to : client.dll
Though this is not yet fully confirmed, if possible could you confirm? Thanks!
Solved by valve : Unconfirmed.

Confirmed by :
http://forums.steampowered.com/forum....php?t=1029032 ( multiple people in this thread. )

Error instead of normal skins

People are seeing the word ERROR instead of regular skins on zombies/Weapons/Etc.

Possible fix : Try verifying your Game Cache.
Solved by valve : Unconfirmed, though I am not sure if this is a valve related issue.

Confirmed by :
Seb32 @ http://forums.steampowered.com/forum...1#post12101207

Rare bug : Killing a witch crashes you to the desktop.

When you kill a witch, or your team kills the witch, you crash to your desktop.
The game still says you are in game and they have to vote to kick you for you to be able to rejoin.
There are no error messages when you crash.Also while verifying there seems to be files missing/corrupt if you're suffering from this issue.

Possible fix : Try verifying your Game Integrity. Note it may not work for all the people. Thanks to : Sveryn
Possible fix 2 : Delete your game, and redownload it. Thanks to : Fragilfox
Solved by valve : Unconfirmed.

Confirmed by :
Tibetanpunk
Slow
Conker1985
Treatednub
Vyser
Firstdark
Eboreus

Miscelaneous Bugs.

Carrying multiple melee weapons

Some people are experiencing a glitch that they drop their main weapon for a 2nd melee weapon.
Not sure if this has to be like that.

Possible fix : I don't think we can fix this.
Solved by valve : Unconfirmed.

Confirmed by :
http://www.youtube.com/watch?v=Aqo9rC-XeNo

When changing team in Versus, the team will get stuck.

An odd occurance happens sometimes when a team switches sides, they get bumped into spectator mode, pressing M or using console to join a team does not work.
You have to reconnect to the server for you to be able to play again.

Possible fix : None. If you know a possible fix, please let me know.
Solved by valve : Unconfirmed.

Confirmed by :
Ooga Booga
seagull[LH]
Woden

Dev. console not working in lobby.

Some people are experiencing a bug that the dev. console does not open in a lobby.
They have to back out off the lobby, enter the commands there and rehost the lobby.

Possible fix : None. If you know a possible fix, please let me know.
Solved by valve : Unconfirmed.

Confirmed by :
Hooterman @ http://forums.steampowered.com/forum...php?p=12072662
OhYeah
lag
seagull[LH]

Rare bug : On Swamp Fever map 1 at the ferry.

On Swamp Fever, Map 1, when getting thrown into the water when the ferry comes you sometimes don't die immediatly, but you are stuck under the water without movement and sight. Eventually you do die but this takes a while.

Possible fix : None, this is not fixable by us I think.
Solved by Valve: Unconfirmed.
Valve said to have fixed this but people are still suffering from it.
Proof : http://www.youtube.com/watch?v=6rmnnvBPd7c

Confirmed by :
Theliberator1
lml83
Spesic
chubbylumpkins


Russian letters don't work in ingame chat.

All russian letters don't work in the ingame chat.

Possible fix : None. I don't think it's possible for us to fix this.
Solved by valve : Confirmed.

Confirmed by :
Allosaurus
dizzel
arz_r52

The game minimizes to the desktop.

The game sometimes automatically minimizes itself to the desktop.
Possible cause for this would the AVG 9

Possible fix : Uninstall and then download and install the full AVG9, that corrects the problem. Not confirmed yet.
Thanks to Valdez
Also you can try by closing the AVG9 in the sys. tray. Thanks to Bruceoite
Solved by Valve : This does not seem to be a Valve issue.

Confirmed by :
Valdez

Rare bug : When trying to crown the witch while sitting with incindiary ammo, she becomes invincible.

Trying to crown the witch with fire ammo makes her unkillable.

Possible fix : None. I don't think this is fixable by us.
Solved by valve : Confirmed.

Confirmed by :
Canoners
adamspurgin @ http://www.youtube.com/watch?v=db0feEXaE3Q
JoshuaO
kraemahz
HerbDerb
Monkeyhood @ http://www.xfire.com/video/19955d/

Achievements and stats suddenly reseted.

The stats and achievements are being reset for no know cause.

Possible fix : None. As I don't think this is a issue we can solve.
Solved by Valve : Confirmed.

Confirmed by :
serg_boy202
Bryandt @ http://forums.steampowered.com/forum....php?t=1032596
mp3playergod @ http://forums.steampowered.com/forum....php?t=1032597
Mortal1988 @ http://forums.steampowered.com/forum....php?t=1032557
rottencat
Larsson719

Texture Glitch : Ventilation ducts on Hard Rain Map 5 are invisible

The ducts aren't visible at all on this map for some players.
Verifying the game cache does not solve this issue.

Possible fix : Change your graphics settings if you are playing on Low, to be more precise your effects setting. Thanks to Moorsoldaten.
Solved by valve : Unconfirmed.

Confirmed by :
SbEguy
SunDown1982
Bacon!!!
Moorsoldaten
walliard

Rare bug : When tank incap. you, the tank can get stuck in your body/incap. survivor can get stuck on your leg.

The survivor gets stuck onto your leg, on the tanks leg, or the tank gets stuck in your body.

Possible fix : None. Don't think this is fixable by us.
Solved by valve : Unconfirmed.

Confirmed by :
Me
Lordodin69

Boxes of death.

On Hard Rain, map 2, at the safehouse there are boxes near the table.
If you crouch jump at the right spot on the bit of invisible wall there, and wait a couple of seconds you die/get incapacitated.
I tried this myself and indeed it is true.

Possible fix : None. And I don't think we can solve this.
Solved by valve : Confirmed.

Confirmed by :
Agent509 @ Link1
Me.
Prisoner416 @ Link2

Glitches List

- Charger can hit you through the wall.
- Sometimes multiple smokers, up to 3 I've seen so far, are spawned at the same time.
- ( not sure if this is allowed in the terms of game ) But I thought it was said that Tanks would and could not spawn during panic moments?
We had one in our panic moment in Dead Center, Expert diff.
- In Scavange mode gas cans fall beneath cars, making them impossible to get. Link
- When you point to an ammo pile and choose the voice chat "Look", your character will say "Guns here" (or "weapons here") instead of saying "ammo here" like they should.
- Versus teams would lose their round if none on that team have loaded yet.
- This is a more logical Glitch, but, when you shoot off both arms of the CI, they're still able to climb up on things. If you think logically, when your arms are shot off, you can't really climb.
- In Dark Rain, when you go up on the elevator and a spitter would spit on it, the pool would form on top of the elevator but you would still receive dmg from this.
- Steam Stats acts up and sometimes add extra plays then you actually have done in real.
- When you switch teams in Versus you sometimes start in Spectator mode, you have to manually chose your team.
- Rare Glitch : On Dead Center, Map 1, when you go down in the elevator, you can fall through the bottom, spawning on top of the elevator again.
- Rare glitch : On Swamp Fever, Map 1, on versus if you're incappacitated on the ferry you sometimes don't die and Versus has to be rehosted.
- Hand gets stuck in the "pick up" position until the weapon is used or the player melees.
- The charger sometimes comes charging at you, and all of the sudden runs back from where he came, if he has a Survivor, he runs with them. Link
- When searching for games to play online it always returns 0 results no matter what I set the Filters to, I have to click "More search options" and use the selections there to find games. Link

Exploits.

- When you spin around when a jockey is riding you, you stay still and the jockey becomes useless.
http://forums.steampowered.com/forum....php?t=1032667

- On Dark Carnival, the rollercoaster part, when you start it and jump on the fence next to it, you can jump on the starter house, cutting about 1/3 part of the rollercoaster.

[Yasutoko]

The continuation of the list.

Performance Issues

Split screen bug : Surfaces with water on top makes it seethrough and very hard to navigate on.

Water gets a hall-of-mirrors effect for both players making it very difficult to play on water-centric campaigns (C3 and C4). Confirmed on C2M1 after sliding down the hill. Confirmed on both 191.07 WHQL and 195.55 beta.

Possible fix : None. If you know a possible fix, please let me know.
Solved by Valve : Unconfirmed.

Confirmed by :
CO_Kevlar
Mofog with Screenshot @ http://forums.steampowered.com/forum...4&postcount=40

Rare split screen bug : Player 1's shadow is a mix of different shadows.

Player 1's shadow (instead of being a solid shape) on close inspection from player 2's view is actually a grid of smaller common infected's shadows. The smaller shadows do seem to be rendered properly, but the fact that they're all following player 1 around and look like lattice or a barcode is disconcerting. This effect does not apply to player 2's shadow when seen from player 1's view. Confirmed on both 191.07 WHQL and 195.55 beta.

Possible fix : None. If you know a possible fix, please let me know.
Solved by valve : Unconfirmed.

Confirmed by :
CO_Kevlar

Crashes and Errors.

Miscelaneous Bugs.

Events sometimes won't start, or let you continue.

Crescendo events are sometimes bugged that you can't open a door to start it, let you continue in the event, or finish the event.

Possible fix : None. I don't think this is fixable by us.
Solved by Valve : Unconfirmed.

Confirmed by :
Shokiru
Tyraa Rane

Stuttering due to one of the latest patches when your ingame steam features are enabled.

Since one of the last patches people would get stuttering in their game, similar to the stuttering bug you get when a tank arrives on screen.

Possible fix: Just un-check this checkbox:
steam settings - In-Game tab - Enable steam community in game.
Thanks to : InterFaced.
Solved by Valve : Unconfirmed

Confirmed by :
InterFaced
Apple_NdiB

Glitch List

- The horde sometimes does not stop coming.
- The smoker animation when launching his tongue still does not work for some people ( Was also present in the demo ).
- Item glitch : Link
- Game difficulty resets itself every time a map change happens.
- Unspawned infected will stumble if passed by a charging charger.
- If you have a Czech/Russian interface, the font in the Dev. Console is unreadable. Link
- Rare glitch : On swamp fever, map 1, versus, when the ferry arrives and the survivors get on, they would get the message that they have escaped. Infected can't spawn anymore and already spawned infected can't do damage anymore to them.
- Rare glitch : Smoker tongue still sticks to body, even after death of the smoker. Link1 Link2 Link3
- Defib can be used from a distance/through a bridge. Link
- When hunter/jockey is shoved, they can still scratch you.
- Dynamic shadows don't work when you equip a melee weapon. Link
- Rare glitch : Opening the menu in a online game pauses the game for everyone. A little box appears with " pause " on it.
- When opening a door it automatically closes itself again.
- SI sometimes spawn inside a wall. Link
- Rare glitch : Custom Sprays not working.
- Rare glitch : Trying to join your own dedicated server does not work Link
- When your score goes over 10000, the text will overlap the score in versus. Link
- An infected stumbles towards you rather than away from you, giving it time to attack you before you are able to melee again. Very troublesome in expert mode.
- Riot cops often fall towards nearby walls no matter what angle you hit them at, meaning they stop stumbling as soon as they hit the wall and do not turn around. This isn't as big a deal as problem one, but still annoying.
- The achievement : Spit happens, appears as Great Expectoration ingame. Link Link 2
- Sometimes when a boomer biles on the survivors, there won't be a horde.
- When a smoker pulls you back, or you get pinned, the bots won't rescue you : Link
- From time to time the last round of Fire/Explosive ammo does not register as a special round and shoots out as a normal round.
- When you are forced to rejoin a Team Versus game, you can't join the game anymore as it says that it's an unjoinable game. Link
- On hard rain 1, bots can take items from the safe room on hard rain 5.Link
- Tanks spawn to far from the survivors. In campaign mode the tank just dies after a while due to this, in versus you get switched due to the ragemeter depleting.
- When a charger charges, and you use a melee attack, it sometimes doesn't register as a hit.
- Sometimes shots at point blank don't register with zombies.
- Rare glitch : Graphics would glitch and you can see the walkways for SI to crawl on. Link
- AI controlled chargers will often start a charge towards you, even if there is a chain fence between him and the survivor.
- All the grabbing S.I. will often ' miss ' a survivor that normally should have hit them if you are right in front of them.
- If a person would join Hard Rain, map 2, near the end of the map, and you enter the petrol station, you still would be able to get Sob Story, eventhough that person didn't start the map with the rest.
- Rare glitch : The map graphics would sometimes glitch out and a purple cube map would be seen.
- If a player, that becomes a tank, would leave the game, the bot is immediatly given to the A.I. to control.
- Rare glitch : If a jockey pounce would be initiated at the same moment you get tank control, the tank would suddenly go under the map to still follow the person who the jockey pounced, making it so that you're stuck there for the rest of the map, and if the tank dies, the rest of your spawns also stay under the map.Link
- SG552 with incendiary ammo has m16 sound (it still has its own sound with explosive ammo)
- ON DC finale you can get on the edge of tent at stage by jumping from two smaller speakers
- Sometimes meleeing a jockey makes him first catch you , then suddenly fall off
- Headshoted/stunned witch can be meleed to death if shes agains the wall (it is a bug from l4d1)
- AI hunter seems to be able to claw you in mid-air right before landing on you
- In Scavenge mode on Dead Center you can be spawned in the elevator making it impossible to do anything. Link1 Link2
- Rare glitch : It is possible to be in game, and at the same time be in a lobby. Link1
- Glitch since last update ( 09/12/2009 ) : Players start to spawn outside of the maps. Link1
Link2
- Bots are able to get Special ammo through the floors.
- Rare glitch : When a SI is shot with fire ammo, when he is able to respawn, he will still be on fire but not take damage from it. Link1
Link2
Link3
- Hit registration of a jockey/charger is not accurate. Most of the time you just fly over or through them.
- Ai director spawns the same weapons at the same place.
- Ai director sometimes does not give the same items at the same place in Versus.

[Larry1212]

I get disconnected from every game at the end of a match or campaign ending.

[Yasutoko]

By disconnection, you mean crash?
Or real disconnection?

Are you behind a firewall?
Did you already try rebooting your pc and try again?

[aiymanube]

Only played through once, but at the end of Dead Center (beating the campaign), after the credits had rolled, it said "Connection to Steam Lost". But immediately afterwards, it went back to the main menu and my "Friends Playing" started scrolling.

It didn't affect my achievements or anything and I assume I'd be able to get right back into a game. Just thought I'd let you know what I experienced.

[Larry1212]

Originally Posted by Yasutoko

By disconnection, you mean crash?
Or real disconnection?

Are you behind a firewall?
Did you already try rebooting your pc and try again?

I just disconnect. A message pops up saying "You were disconnected from the server" It doesn't effect gameplay at all. I can join lobbies, join games but after a finale I get booted straight to the menu. I can join another game straight away...

It doesn't really bother me since I can play the game without any hinderence but it sucks if i'm in a good group and we want to move onto the next campaign.

[Yasutoko]

If you know other people experiencing it, please ask them to post it in here also.

[ModMunki]

So, I don't really know if this is a glitch, but I am unable to change melee weapons. Instead of dropping the current melee weapon when I pick up a new one, it drops my primary (t1 or T2) weapon and equips another melee weapon.

http://www.youtube.com/watch?v=Aqo9rC-XeNo. Mind the staggering, I play on a laptop.

Anyway, I was left with a baseball bat and a chainsaw.

[spoziuk]

Joining late to a vs game and winning the first round, you won't auto join survivors after the map change, you'll be stuck in spectator and need to manually join the team

[Yasutoko]

Originally Posted by ModMunki

So, I don't really know if this is a glitch, but I am unable to change melee weapons. Instead of dropping the current melee weapon when I pick up a new one, it drops my primary (t1 or T2) weapon and equips another melee weapon.

http://www.youtube.com/watch?v=Aqo9rC-XeNo. Mind the staggering, I play on a laptop.

Anyway, I was left with a baseball bat and a chainsaw.

Added to the list

I'm not sure how to categorize this, but I can't seem to get past the second stage of The Parish without my screen going black while the sound loops. I tried the Carnival campaign, but even then I had the same problem in the first stage. Thing is it doesn't go to the desktop; I have to open task manager to manually close the game. It could be my RAM, because it's sorta low for the time being, but I was able to play L4D1 and the L4D2 demo without a hitch. I'd call it a crash, but a mod in another thread told me that it sounded like a different problem.

[Larry1212]

In the Carnival's first map the outhouse hole is blank. Like a square of black. Looks out of place when you look at it, something minor that's annoying... and we don't have legs -.-

The tank looks HORRIBLE and lags the ♥♥♥♥ out of me(And many others I hear). Having a tank spawn makes it unbearable to play.

The game is randomly minimizing to my taskbar. After 6-8 seconds, I can click on it and bring it back up again and continue playing.

[xSkum]

Originally Posted by Larry1212

I just disconnect. A message pops up saying "You were disconnected from the server" It doesn't effect gameplay at all. I can join lobbies, join games but after a finale I get booted straight to the menu. I can join another game straight away...

It doesn't really bother me since I can play the game without any hinderence but it sucks if i'm in a good group and we want to move onto the next campaign.

same not to big of a deal

[tibetanpunk]

Tanks falling through the escalator stairs in Dead centre, then appearing at the top of the stairs.

Chargers still doing their crazy reverse thing, mid-charge.