Mecanim-Statemachine caches old version? (was: One Transition blocks other Transitions)

Hi everbody,

I just changed the question since there seems to be a problem with Unity sometimes not updating the statemachine properly after new transitions are added. In my case I can delete transitions, save the asset and when I run my game again the transitions still work and on the other hand, newly added transitions never run because they seem to be missing from the compiled statemachine. So I'm always having an outdated version of my statemachine which only gets recompiled when I make quite significant changes to it. Is anybody else having issues like that? Or is there a ways to force the rebuild of certain assets? I'm using Unity 4.0 on win7/x64 Thanks for your help