huyue
I previously reported this issue (https://feedback.vrchat.com/bug-reports/p/performance-degradation-with-abnormal-log-spam). Initially it occurred sporadically and could be temporarily resolved by restarting the game. However, after today's update, the issue has become 100% reproducible.
Typical Behavior:
Normal operation: Smooth experience (FPS >70 on most days, standard log size)
Current issue: Severe performance drop (FPS <60, log files expanding 1500x with repeated error messages)
Reproduction Steps:
  1. Join the WannaDance world (wrld_8ac0b9db-17ae-44af-9d20-7d8ab94a9129) - preferably an instance with multiple existing players
  2. Observe performance degradation over time:
Rapid log file growth becomes apparent
Significant FPS drop occurs
  1. Interact with persistent storage:
Favorite a song using the right wall interface (song IDs are stored via persistent storage)
  1. Verify storage malfunction:
Rejoin the world after 30 seconds
Check the favorites list to confirm the newly added song ID is missing
Note: Previously stored favorites remain intact and readable
Additional Observations:
The persistent storage issue (steps 3-4) previously worked correctly in most cases
Current status: 100% failure rate after today's update
Strong indication that the update introduced this regression