Quick answer: Only advance the shake timer and offset when the game is not paused, and base decay on your game's delta time so pausing fully stops the shake.
If your Pygame screen keeps shaking after you pause, the shake ignores the pause state. Gating its update fixes it. Here is how.
How to fix it
1. Gate the shake on pause
Wrap the shake update in if not paused: so the timer, decay, and random offset all freeze while the game is paused.
2. Hold the offset while paused
Keep the current shake offset constant during pause rather than resetting it, so resuming continues smoothly instead of snapping to center.
3. Use game delta, not wall time
Drive decay from the same delta you scale gameplay by; if you tie it to real clock time the shake advances even when nothing else does.
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 Pygame 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.