Fix Unity Engine Freezing & Hangs
**Unity Engine** is freezing or becoming unresponsive. This is a *widely reported issue* with likely solutions.
Freezes differ from crashes — the game stops responding but doesn't close. This is often caused by GPU driver timeouts (TDR), deadlocked threads, or I/O bottlenecks.
**What's causing it:**
• session sync delay (68% likely)
• server overload (52% likely)
These steps should resolve it for most players:
1. increase timeout window.
2. retry handshake logic.
3. Increase the Windows TDR (Timeout Detection and Recovery) delay via registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers → TdrDelay (DWORD) → set to 10.
4. Disable fullscreen optimisations: right-click the game .exe → Properties → Compatibility → check 'Disable fullscreen optimisations'.
5. If freezes happen at specific game moments, clear the shader cache (AppData → LocalLow → [game] → delete shader/cache folders).
💡 *Quick tip:* Try Alt+Tab out and back in — this can break some freeze loops related to fullscreen rendering.