: You may need to delete your current shader cache to let the game rebuild them using the new library. Security Warning DLL download sites
: In Steam, right-click your game, select Properties > Installed Files , and click Verify integrity of game files . This will automatically redownload any missing or corrupted DLLs. oo2core9win64dll exclusive
Understanding the oo2core_9_win64.dll File: A Comprehensive Guide : You may need to delete your current