Strongbox monsters not spawning

Bug Report ID: #3782561205

Strongbox clicked on the crypt layout and got the strongbox screen fog, fully cleared map, strongbox didn't open. Monsters spawned in the walls/terrain, maybe?

Same here. The fog appeared, but no monsters spawned and I couldn't open the strongbox.
Video: https://drive.google.com/file/d/12XXsm49-5IJvYrgZgoVyHO678Jf2xB1e/view?usp=sharing
Bug #: 3.486.050.173

Same here.

Map Mire, fog appeared, chaos orbs cycling the box no mobs to hunt, map fully cleared, position of the box is on a small path with ramps next to it

one more like this: Bug Report ID: #2879652304

Encountered same problem monsters not spawning on strongbox
Bug Report ID: #2346961888
https://imgur.com/a/9TBHcrL

Encountered the same problem on map "Forge" included a video showcasing that no monsters are anywhere:
https://youtu.be/DNakk6a3gCk

I assume it might be either because it's trying to spawn the mobs out of bounds or because I full-cleared the map before opening the box, so the remaining monster-count is 0.

same here
Bug Report ID: #1660317301

same, no place for mosters to spawn (small corridors)

Bug Report ID: #2879776561

Experienced the same issue on Mire map.

Same I even lost a Vaal orb to this garbage!