When switching between windows using Alt+Tab on occasion Minecraft will crash. This happens whether in the menus or in-game. Possibly to do with the pre-loading of chunks occurring again when switching back in which might cause the crash?
MC-114483
Game crash when switching windows
Resolved
Awaiting Response
0
Incomplete without a crash report from (minecraft/crash-reports/crash-<DATE>-client.txt). Please attach it to this ticket so that we can diagnose your issue.