Optimize button not working

[squat]

Hello , I have a problem that when i enter the game it asks me to optimize the files , I have 2 choices : Skip or optimize , but when i click the optimize button it doesnt do much , to be fair it doesnt do anything , like the button isnt working , the skip button is working but when i skip it and click play or options or anything else in the menu , It just makes my menu dissapear and i see only the background .
I played this game before and now i bought it and im looking forward to play it with my friends .
Help would be appreciated .

[Vitdom]

please try the following

delete ...\Steam\steamapps\common\Natural Selection 2\core\lua
delete ...\Steam\steamapps\common\Natural Selection 2\ns2\lua
delete %APPDATA%\Natural Selection 2\Cache
make sure your graphics driver isn't set to force Anti-Aliasing or Anisotropic filtering on
run ...\Steam\steamapps\common\Natural Selection 2\redist\directx\dxsetup.exe

Veryify the game files by right clicking NS2 on Steam, selecting Properties, going to Local files, clicking Verify integrity of game files.

In-game, press § ' ´ key to open the console interface and enter "map ns2_summit"
This will initiate the loading process, and will compile the game shader source code etc. expect it to take a while

[VicVic]

same exact issue here I will try your ideas Vitdom thank you.

[squat]

Vitdom thanks mate i will give it a try !

[Galliass]

Gonna try that

[squat]

Vitdom i did everything you said , Before the console step i enter the game and my screen is just black , Did i do anything wrong ?

[Galliass]

dammit... I did the 4 first steps but now I tried to run the game but I only have a black screen :/

[VicVic]

the fix worked for me thank you.

[Galliass]

ok after I fixed the cache it worked for me too ;) thx