i think i remember that Clickteam can't just change MMF like they want due to IMSI owning shares or something along those lines. If MMF2 is made purely by them, they can probably make it more bug free. I mean, they got it right in KnP, and TGF (dunno about CnC) .. and those didn't have anything to do with IMSI..
Yes, Clickteam had to use the interface tools provided by IMSI (including all the crappy import filters and stuff you see in the Corel software). In MMF2 they're using their own stuff partly taken from Jamagic so the interface will be smoother and easier to use.
So basicly its not Clickteams fault MMF's interface is buggy, its the fact that IMSI wanted thinks there way, regardless to the fact that it was buggy. From the sound of it, because MMF2 apperently isnt using those, MMF2 should be ALOT better interface wise.