Ziggurat map Catarina bug

When freeing the 3rd miniboss it immediately disappeared and Catarina remains untargetable and attacking with no way to move through the phase or exit the room. I've hit every part of the arena in case it was just invisible as well as every area outside the arena within my range but there is nothing.

Bug reference number 2,364,263,059

Terrible quality but here's the empty arena with Catarina stuck on the last phase. https://streamable.com/xs73xj

same here - bug 960,889,330

bug 1,941,430,159

Got the details of the bug:

During phase 2, the second boss went into the shadow mode (invisible, invulnerable, untargetable).
Katarina did not realize that boss #2 was not dead yet and summoned boss # 3

I killed both bosses, the Katarina went into phase # 3 but, but she does not check if the boss 3# is dead, therefore she does not go into phase #4 (final one)

Seems like an easy fix, just someone needs to read the thread.