Issue (The better the description the better i can solve the issue):

Steps to reproduce:

Affected Versions (Latest is NOT a version):

• Minecraft: 1.16.4
• Forge: 35.1.28
• TenshiLib: 1.16.3-1.3.0
• Improved Mobs: 1.16.3-1.7.3

Other Mods (If you think it might be cause of an incompability):

Logs (Use a site like pastebin, gist etc. DONT COPY PASTE THE LOG IN HERE):

https://pastebin.com/8NVhysBv (crash report)

fixed in dc5e51e