Studio has crashed for me 3 times today; no freezing, output, dialogs, just a random shutdown.
Looking at my logs in AppData, each time studio crashed, I got the same two distinct output messages at the very end:
1571874184.52734,3510,6 QtMessage_Fatal: QQmlEngine: Illegal attempt to connect to StudioUserPreferences(0x20a2a2220b0) that is in a different thread than the QML engine QQmlEngine(0x20a83d001d0.
1571874184.53027,3510,6 QtMessage_Warning: QWinEventNotifier: Event notifiers cannot be enabled or disabled from another thread
Each crash happened while I was editing a script on Team Create. I am using Windows.