After finishing M+ Dungeons Ill often (not always) get this error when pressing the Hearthstone to leave the dungeon.
After a "/reload" it works fine.

Bugsack Error:
1x [ADDON_ACTION_FORBIDDEN] AddOn 'PremadeGroupsFilter' tried to call the protected function 'UNKNOWN()'.

Even though PGF is blamed in the error message, I assume that the actual cause is something else, maybe another addon like some keystone helper or WeakAura. Hard to tell as even the protected function is literally unknown.

Alright, makes sense. thank you. Great addon btw!