Information

Minecraft version: 1.21.7
Modloader: Fabric
Fabric loader version: fabric-api-0.129.0+1.21.7
Environment: Single player

First mod name: Silence mob
First mod version: silencemobs-1.21.8-3.7

Second mod name: Flashback
Second mod version: Flashback-0.36.0-for-MC1.21.8

Description

I tried in singleplayer creative, it's working.
I tried in recorded singleplayer creative, it's not working.
Somehow one doesn't recognize it as entities?

Crash report

If available.