Does anyone know PTC's status on improvement of their MDO package? I don't see any recent upgrades to the program. I have some serious questions as to the programs accuracy. Among other things, it has been flakey with it's 'Playback', and with saving files. I have been struggling with a particular mechanism for more than a year. I am considering abandoning MDO, even tho I am comfortable with its operation -- I started with Wildfire, and before. If there is an expert out there who thinks they can solve my issue (for a fee), I would be most happy to discuss.
+1 on filing a PTC support case. When something doesn't work as expected, it is worth sitting down with tech support on the other end of the screen to troubleshoot it. If it gets too involved, turn over the files to TC and see what they come up with for a solution.
All too often I design myself into a corner with MDO. I start fresh after some new knowledge and get totally different results. Somehow I think it remembers things that would be better forgotten when you edit defined relations/constraints/links...etc. I even have ground bodies show up out of nowhere in Creo 3.0 after an unrelated edit.