I've tested this snapshot with a server, and it seems like the bug is only present in singleplayer.Compare the UUIDs of my playerdata in multiplayer (left), and singleplayer (right), and the correct UUID shown below from launcher_accounts.json
I've tested this snapshot with a server, and it seems like the bug is only present in singleplayer.
Compare the UUIDs of my playerdata in multiplayer (left), and singleplayer (right), and the correct UUID shown below from launcher_accounts.json