Zombies do not ragdoll most of the time [BUG]

[Barerock]

Description: Zombies should ragdoll, everything else does. Sometimes they work, mostly they don't. They worked yesterday, they don't work now.

Reproduction: Well currently I have no idea how to reproduce. I added a different shader, but the issue is persistent with the old one that ragdolling worked with. I got all ragdolls to work flawlessly by changing shaders, restarting, then changing back. The shaders in question are Complementary v4.4 and Rethinking Voxels Beta 18d. I also removed Starlight and Illuminations to see if they were interfering. No luck.

I have no animation mods either. I did swap to Physics Mod Pro before this issue started. That could be a problem, but unlikely. I added the mods: Blueprint Starlight Illuminations Sapience Unusual End Takes a Pillage Savage and Ravage Bygone Nether Rotten Creatures

None of which edit the base zombie and none that I haven't tested edit the lighting system.

Minecraft Version: 1.19.2 Physics Mod Version: Physics Mod pro v153 Forge 1.19.2

[Barerock]

My method of temporarily fixing the problem by restarting doesn't work in survival.

[Barerock]

Only happens on my survival world so far.

[Barerock]

So it works on all mobs except zombies, and when I reset the mob options to whatever it will work for one and then no others. On creative world I fixed it and it is working perpetually. Same fix does not work on survival, as aforementioned.

[Barerock]

If I set to ragdoll it will work 1/6 of the time.

[Barerock]

Only happens during the day. That narrows it down massively

[Barerock]

Aight, incompatibility found with Rotten Creatures. I have no idea what it edits.