Footstep sounds sometimes can't be heard
It's a known problem with Alcugs, but the cause is unknown.
The marker quests can be finished, but the Great Zero does not activate
I believe the Offline-KI does this, because there are problems otherwise (with instancing perhaps). It can be turned on manually with VaultManager.
Misc multiplayer problems, quabs are turned off(by design), crystals might be turned off too.