Quitting Crashes Windows OS's GUI

[Zivraye]

Godot Version

4.5.1.stable

Question

My entire PC’s GUI crashed when trying to use:
get_tree().root.propagate_notification(NOTIFICATION_WM_CLOSE_REQUEST)

I found this solved ticket with the exact same issue. However, I still experienced the crash after applying the solution.

Why might my game sometimes crash my PC?

Godot Version 4.4 Question I’ve had a few rare cases where exiting my game causes my entire machine to lock up, requiring a hard reset to fix. This only happens when exiting the game, and it happens rarely at best (maybe 1/10 times). It’s also worth noting that my machine has never hit this crash when I set the game to be embedded on play. How would I go about debugging this? I’m looking for a recommended place to start - or if anyone knows what might be causing this then that’d be great as …

So I wanted to open this for others who might stumble upon this same problem since I can’t reply to the ticket about this.

The solution that worked for me was to instead do:
get_tree().root.propagate_notification.call_deferred(NOTIFICATION_WM_CLOSE_REQUEST)

This is likely because the button pressed signal was used to call propagate_notification and somewhere/how the system is waiting for that signal’s callback to finish before actually closing which creates an impossible state. This is just a guess however and one that I wouldn’t expect to completely crash Window’s UI. It crashed both monitors & the game was not export nor fullscreen.

In any case, like the meme, use call_deferred

[Zivraye]

TIL you have to reply to mark as solved

Using call_deferred when you’re inside of a callback and want to call: propagate_notification is the solution.