My character leaves the dungeon after the group kills the first boss and so I get the instance cooldown. I turned on Kill Option Bosses but it shows "[DungeonBuddy]: Leaving group. Reason: Completed [DungeonBuddy]: Left dungeon: Blackrock Depths - Detention Block"
when he says "we'll check it" he means, "we reported it to the developer" so untill theres an update where its addressed, we wont have a fix for you.