For example,I create a datapack and set up a new demension named "new_world".
Then I use command "/execute in minecraft:new_world run tp ~ 255 ~".
When I tp there,the numerical value of experience bar will become empty.
I only quit the game and enter again or use xp command to give player experiences,the value can return to normal.
Thank you for your report!
We're tracking this issue in MC-124177, so this ticket is being resolved and linked as a duplicate.
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