Advice: Never save a “big" package using monticello (lets say ~2000 classes)
and then save the image Why? Because while you don’t have feedback of saving progress* it will be doing something on background (forked save?) and if for any reason you are tempted to do an image save or save and quit, it will save in a state that will prevent the image from opening again You have no option but to go to your previous image version or something of the kind :( *saving a package actually provides some feedback on progress but when the progress bar finishes, the saving doesn’t actually finish and it still have something going on, so you get "silence” (no-feedback) until you get the little monticello window with your new package version
