VRChat 2024.4.1p4

Fixes

• Fixed RequestSerialization not working in Start.
• Fixed OnDeserialization sometimes firing without data.
• Fixed late-joiner sync not working for UdonBehaviours set to Manual sync mode.
  • This was a server-side change that we already deployed earlier, but letting you know here!
• Fixed a rare issue that could cause users to be stuck on the loading screen.