Abyss rifts on bossfights: In some maps unclearable

Abyss rifts can spawn inside of bossfights. It brings "rare enemies" on top of them too sometimes. I have experienced this twice.

One of them was on the "sacred reservoir" map. Inside of that boss room you cannot attack until you approach the boss. Aside from getting killed once, I had to backtrack to the entrance, attack, lure enemies to the entrance, repeat.

Abyss rifts should not spawn on bossfights if they are not going to interact with them. And if they do, special cases should be considered.