Minecraft Version

1.20.x

Mod Loader Version

0.14.21

Mod Version

1.4.18

Describe the Issue

Every mob spawner is now, simply put, a ticking block entity

latest.log

https://gist.github.com/terrarian10/0983f5d912d55da9a089a9aba75e7b02

Do you use any other mods except the required ones?

Yes, but even after removing mods (including this), ticking block entities will still occur

Should be fixed with a later update.
4aaaee5