Since the patch today which is supposed to preserve config settings, instead it seems to reset them, bar the ones actually settable in-game (these are the files in Published\Content\ShooterGame\Config). It overwrites them as soon as the game starts (ignore shooterUI_org.ini - thats just my backup)
Before:
Game starts:
It removes detailmode=0, and the lodbias=3 tweaks among others.