Steps to Reproduce the Bug

1. Load a world
2. Open Jei
3. Change dimensions

Expected Behavior

Cached objects that contain ClientPlayer should have a cleanup/update logic as ClientPlayer is discarded on Clone (dimension travel and death for example)

Actual Behavior

Leaks Client Player, Level, everything related to player.

Mod Pack URL (Optional)

No response

Mod Pack Version (Optional)

No response

Extra Notes (Optional)

No response

latest.log

check image

Thanks for the report!
I have fixed the issue by avoiding storing the client player at all, and it will be released shortly.