Metamorph moved out of bounds in Rotting Core and is unreachable

ref 3513026616

After the bossfight in rotting Core you end up in a little area with Lilly and Weylam. I was able to start a metamorph fight there.
During that fight - maybe during a Shavronne phase - the metamorph moved and somehow ended up out of bounds.

There seems to be a small area in the top right corner, that is out of bounds, where the metamorph is stuck. Transformations are still happening, but no matter the position of the player it can't be damaged in any way, because there is a hidden wall between the player area and the area where the metamorph ended up.

You can see the metamorph being out of bounds in the map overlay.

Thanks for this league and even this funny little interaction of metamorph and bounds :-).

ref 1104989347
Same happened before i talked to sin after finishing the three side areas. He could still fire projectiles but minions couldn't hit him. This is my first bug post on POE so i hope Im doing this right.