Nightmare of Lycia gets stuck in place

I've ran a tier 17 map Sanctuary as usual with the only exception of including Maven intereference in the map mods. During the boss fight with Lycia as she stands in the middle and summons Beidat, Maven decided to copy Beidat and i fought two of them at the same time. Everything normal so far, but then the copy dissapeared before i managed to kill the original and for some reason Lycia started acting again. I then fight both the original Beidat and Lycia at the same time and in the moment i kill the original Beidat, Lycia gets healed AGAIN and then gets stuck in place inacting. She is killable but just completely still.