Creating new world and enabling CE immediately gives single time permissions (lack permission to create item) error to everyone after refresh.
Create any custom effect gives error to players (lack permission 'activeeffect').
Invisibility spell condition ends by time out or removal (both DAE and CE panel) sends private message (chat message enabled GM only) to GM and all players. Then sends error.
Greater Invisibility spell condition presents the same behavior.
Invisible condition does not.
Reproduced with only CE, libwrapper, and socketlib enabled.
Reproduced with all arrays of permissions both actor, token, and world settings.
Foundry v11.315 DnD5e 2.3.1 CE v6.0.0
Reproduction
Reproduced with only CE, libwrapper, and socketlib enabled.
Reproduced with all arrays of permissions both actor, token, and world settings.
Reproduced on a new world.