Put the summary of the bug you're having here
What I expected to happen was...:
When the game opens from a save the previous sessions experience points should be present.
What actually happened was...:
While rebooting and playing the game, experience randomly drops without dying.
Steps to Reproduce:
1. Open a survival world (possibly needs to be one prior to 1.16)
2. Play for a short while and observe experience dropping
3. Quit game and reopen to see experience has dropped.
Please provide a screenshot of the world this occurs in with your F3 debug screen enabled.