Quick answer: Move heavy cleanup off the main thread or spread it across frames, ensure teardown does not block on unfinished work, and capture where the transition hangs.

A freeze when exiting to the menu is a teardown problem — cleanup that blocks or hangs. Making it non-blocking fixes it. Here is how.

How to fix it

1. Find where teardown blocks

Capture the main thread's stack during the freeze. It will be stuck in a cleanup step — a blocking save, a wait on a thread, a deadlock. That step is the cause.

2. Make cleanup non-blocking

Heavy teardown (saving, freeing large assets, stopping systems) on the main thread freezes the transition. Do it asynchronously or spread it across frames so the game stays responsive while it unwinds.

3. Stop background work before tearing down

If teardown waits on a thread or callback that never finishes, the transition hangs. Cancel and join background work cleanly before freeing what it uses, so nothing blocks forever.

Catching the ones you can't reproduce

The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.

Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.

This is where a tool like Bugnet earns its place. Its SDK captures every your game error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.

The errors you never hear about are the ones quietly costing you players. Visibility turns them into a worklist.