We are aware of an issue where bosses are occasionally respawning in an instance and are working on a fix.
Here is what we suspect is going on. When in a group instance or encounter, if you have defeated the Boss, but are still in combat (due to minions or adds), if you use a spell card to summon a minion, the boss will re-spawn and enter combat.
Note: Using Henchmen from the Crown Shop will NOT cause this issue to occur and is safe to do so.
There have been some reports of this occurring after a Boss has been defeated and a player flees/re-enters combat. This does always occur. To avoid this issue, if a boss is defeated, avoiding fleeing and re-entering is a safe course of action.
