[Bug] Simulacrum Wave Stuck with Wretched Defiler Spectres

Bug Report ID: #1.722.406.990

When using Wretched Defiler spectres in Simulacrum, the instance always becomes uncompletable with my build. The wave starts normally and enemies spawn as expected, but near the end the counter will show that several monsters remain (e.g., 5+). However, no additional monsters appear, leaving the wave stuck and preventing progression.

I have tested this in multiple Simulacrums, and the issue occurs consistently on the first round of each run. I also joined a friend’s Simulacrum and the moment I entered, their wave bugged in the same way.

*Edit, this also happens in Cowards Trial, can't progress to second round

Steps to Reproduce:

Summon Wretched Defiler spectres.

Enter a Simulacrum and begin wave 1.

Progress until the wave is nearly complete.

Observe that the counter still shows several monsters remaining, but none spawn.

Expected Result:
All remaining monsters should spawn and allow the wave to be completed.

Actual Result:
No more monsters spawn, the counter remains above 0, and the wave cannot be finished.

Showcase of the bug:
https://youtu.be/HhLUJGOXA2o

I think this is also occurring with the primates from Rite of Passage - consistently can't progress at Wave 10