Levels disappearing after switching dimensions
When you switch dimensions using a waystone or tping or just going through a portal, levels can disappear and will only reappear after relogging
Which mod version do you play with?
adding onto this; i have the same thing happen in my game in 1.3.1- when i switch dimensions, my levels will completely reset in that dimension, sometimes not returning to normal until i log out and back in
Its a vanilla bug: https://bugs.mojang.com/browse/MC-124177?focusedCommentId=466379&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-466379
You can try debugify which fixes this bug and many others
Might be fixed with the latest update
I'm using the 1.18.2 version, Broken on here. Debugify didn't fix it from what I can tell
This happens typically when the server or client loads too slow after the dimension change happened