Garry's mod wont start after update (Validation loop) need help

As usual after update game is broken once again.

This time developers were really creative.

Ill show you what I see in my downloads tab in steam:

https://dl.dropboxusercontent.com/u/84539988/sc/IVOvewUT.png

It says “validating” after that validation is done it just loops and starts validating again.

Trying to launch game gives me this error:

https://dl.dropboxusercontent.com/u/84539988/sc/7F2t7PMd.png

After this I went to steam logs to find out more heres some things I found interesting from steam logs:



[2016-02-03 18:24:22] Scheduler update appID 4000: Priority Last, legacy=no, restore="", timeSinceLastPlayed=271038, appDisableSecondsRemaining=0
[2016-02-03 18:24:23] AppID 4000 state changed : Update Required,Fully Installed,Files Missing,Files Corrupt,Update Running,Update Started,
[2016-02-03 18:24:23] AppID 4000 update changed : Running,
[2016-02-03 18:24:23] AppID 4000 update changed : Running,Reconfiguring,
[2016-02-03 18:24:23] AppID 4000 update changed : Running,
[2016-02-03 18:24:23] AppID 4000 update changed : Running,Validating,
[2016-02-03 18:24:23] Validating files (all active,full) ...
[2016-02-03 18:24:29] Validation: file missing "D:\steam\steamapps\common\GarrysMod\bin\CmdSeq.wc"
[2016-02-03 18:24:46] Validation: file missing "D:\steam\steamapps\common\GarrysMod\platform\config\ingamedialogconfig.vdf"
[2016-02-03 18:25:06] File validation finished: 2618 files (3888822519 bytes) total, 2 files (24873 bytes) mismatched (42840 msec).


this thing just starts looping non stop.

However I think this might be issue:



[2016-02-03 18:24:29] Validation: file missing "D:\steam\steamapps\common\GarrysMod\bin\CmdSeq.wc"
[2016-02-03 18:24:46] Validation: file missing "D:\steam\steamapps\common\GarrysMod\platform\config\ingamedialogconfig.vdf"


Trying to verify game cache says that all my files are fine. sure they are.

I don’t know what more I could add that would be useful so if anyone has any idea how to fix my game share with your toughts because yesterday it ran completely fine but now magicly everything is corrupt and game wont even start.
Also would be great if someone uploaded these two files maybe I could drop them in manualy and see if it changes anything.

EDIT:

http://support.facepunchstudios.com/kb/articles/32-common-problems-with-steam

Awesome so basicly this is completely random glitch or what?

time to waste time backing up files and redownloading game thx steam thx garry top quality software.

Updated this page with more information:
http://support.facepunchstudios.com/kb/articles/32-common-problems-with-steam