On MacOS latest Mojave patch while in “full screen” mode it seems any action has the potential to crash the application. While not in the “full screen” mode it seems no crashes happen.
I am not sure this is 100% darktable as I have had Lightroom randomly crash as well before but that is super rare where in DT I can effectively guarantee it will happen in full screen mode.
I am going to do a clean install of MacOS to ensure it is not some weird interaction with another application running. If it still persists I will see what I can do about a bug report.
Posting here to bring it to some attention and see if anyone knows the proper procedure for a useful darktable bug report if it comes down to that.