As in the title. It happens somewhere after Awake and before Start when a certain scene is loaded. I'm not exactly sure how to debug it - the editor crashes silently and with no trace of an error in the log - but I think it may be a bug in the editor (after all, it runs fine after building). Assuming it hasn't been reported before, how does one file a bug report? I'm using Unity 2019.2.0a7.