When doing a /home tp or /back that crosses dimensions the XP levels show as empty on the client. As soon as any new XP is aquired the correct value is shown. Teleports within the dimesion leave the XP shown correctly.

This does prevent e.g. enchanting until the XP levels are updated. Is that check done client side as well as server side, or is there some out-of-sync on the server side as well?

MC 1.20.1
EssentialCommand 0.33.2-mc1.20

Thank you.
We'll try that mod after the next planned restart.

Is that check done client side as well as server side, or is there some out-of-sync on the server side as well?

I believe the button checks are done client-side, so if player state gets out of sync with the server (which I believe is what happens in this bug), you won't be able to enchant.

This sounds like MC-132543.

This fabric mod should resolve your problem:

• https://www.curseforge.com/minecraft/mc-mods/fix-experience-bug

related, for my own sake:

• #64 (comment)
• #128
• #161
• #226
• #191