Rare Monster Stuck in Floor – Vaal Factory (Lvl 80) – Cannot Clear Map

Description:
While running a Level 80 Vaal Factory map, I encountered a rare monster that became stuck inside the floor. It is completely untargetable and cannot be damaged in any way. Since it is required for map completion, this makes the map impossible to fully clear.

Reproduction Steps:

Enter a Level 80 Vaal Factory map.
Encounter a rare monster (exact mods unknown).
The monster gets stuck in the floor, making it untargetable and unkillable.
Expected Result:
The monster should remain in a valid position where it can be targeted and killed.

Actual Result:
The monster is clipped inside the floor and cannot be damaged, preventing map completion.

Attachments:
I have attached an image showing the issue for reference.

Additional Notes:

I attempted using different abilities and area-of-effect skills, but none could hit the monster.
Leaving and re-entering the instance did not resolve the issue.
This issue may be related to terrain collision or pathing.
Please let me know if further information is needed. Hope this gets looked into!

https://ibb.co/rfX3MPcK