Had a player overroll a some instant damage potions. Instant damage 7 and instant damage 8. They combine them into a single bottle and someone drank it. It bricked their player data. Different player then rolled a single instant damage 5 potion and got the same issue.

This is the log that was thrown out in the console for the first player:
https://pastebin.com/sDjCpZsh

This is the associated log from that event.
2024-08-03-1.log.gz

Got something about ticking player. Had to delete their player data to get them back in.