It seems that there is a problem with loading persistent data that was created before the most recent update to the VRC client. My world 'Karaoke in Sync' stores an array of strings and VRCUrls in a PlayerObject. When trying to restore the data after the VRC update, the following happens: 2025.05.01 00:43:48 Debug - [Behaviour] OnPlayerJoined CMajor7 (usr_4cb5a109-2aa6-4a0d-933b-244388260586) 2025.05.01 00:43:48 Debug - [Behaviour] All 3 bunches for FavoritesData [1] collected, now restoring. 2025.05.01 00:43:48 Error - [Behaviour] Could not use persistence hashes. Remote: [2144629733, 1792320289] Local: [[ÎÍÏÌÍÍÍÎÏÍÏÍÏÍÎÎÍÏÎÏÌÏÍ+ÏÌÌÌÌÏÎÎÍÏÌÍÎÎÍÏÎÏÏÍÌÌÏ, -1090919516], [ÎÍÏÌÍÍÍÎÏÍÏÍÏÍÎÎÍÏÎÏÌÏÍ+ÏÌÌÌÌÏÎÎÍÏÌÍÎÎÍÏÎÏÏÍÌÌÏ, -940957741]] 2025.05.01 00:43:48 Error - [Behaviour] Unsafe to use serialization recovery data for FavoritesData [1].ÎÍÏÌÍÍÍÎÏÍÏÍÏÍÎÎÍÏÎÏÌÏÍ 2025.05.01 00:43:48 Debug - [Behaviour] All 1 bunches for Player Data Object [1] collected, now restoring. 2025.05.01 00:43:48 Debug - [Behaviour] Restored player 1 After this happens, the persistent data is lost. Data created after the update can be loaded without a problem.