Server update to 2.1.3.1

"Left 4 Dead 2 - Update (2.1.3.1)
Product Update - Valve
- [Linux] Fixed controller support
- [Linux] Support for Chinese font rendering
- [Linux] Fixed problems with incorrect mouse grabbing when joining a game
- [OSX] Fixed problems with lerp calculations
- Rolled back CEF version to see if it was the cause of vertex buffer errors"

I hope that this update will fix the "vertex" errors and the dark/black screens....  

Update again?OMG

Last update created many problems to many many players (i'm one of them!)..the new update is supposed to correct them  

patch for patch

Server update is ongoing.
alServ2018 is updated.
The remaining servers will be updated asap too.
Update finished.
SFK is available too.