hi marcus
i had the same problem in one session as dzip.
however i noticed two things…one was that it happened when i was using a clone and the next time it happened i realized i had accidently chose the same tool as i had previously used. I am not sure if those have anything to do with it at all but maybe a way to narrow things down a bit.
the tool did return to the group however when i left edit. my fix was to just delete that one from the group (well not delete i just didn’t remark it) and redrew and re added the tool and all was well.
I just realized I haven’t thanked you properly for making MM’s easy enuf for this dummy to use and for making the editing of each object separatly so easy to do that I could just kiss ya. But I’ll just send ya a great big THANK YOU! instead.