Hello everyone, I encounter an issue I don't know how to find what's happen : On the main menu of my game, I have a button that close my game or I hit ALT+F4 and the game closes. But when I'm playing, if I hit ALT+F4 my game freezes, a Windows pop-up appears to force the game to close. I can repoduce this issue everyTime. But I don't know what to to do to identify why it is doing that ? On character selection scene, same issue as when playing, ALT+F4 causes the game to freeze ... On setting menu scene or Online Score scene or main menu, ALT+F4 closes the game normaly. If I play a game a return to the menu, and press ALT+F4 or click on quit button, this make the game freeze again but if I don't play a game and press ALT+F4 or click on quit button my game doesn't freeze. All of that happens on the builded game, not editor. I've checked on the logs and the only difference in log when the game freeze and when it is not are those lines : "Curl error 42: Callback aborted Curl error 42: Callback aborted ... ... ... Curl error 42: Callback aborted Curl error 23: Callback aborted ... ... ... Curl error 42: Callback aborted Curl error limit reached: 100 consecutive messages printed" But when you look at the causes of curl 42 on the internet, you can see that it's linked to problems communicating with a server, but other scenes in my game also use commands to communicate with a server, but in these scenes ALT+F4 doesn't crash the game, so I'm not sure that's the cause of my problem. When the game freeze, if I wait 30 sec, the game unfreeze itself and closes Could you recommand some advice to identify why ALT+F4 freezes my game ?