States gone mad? oO

[Naurbrannon]

I made an addon time ago that used stance states, that's a very simple addon to cicle stances using 2 buttons instead of 3, code is here , since 2.1 something changed, it all worked fine out of combat, but in combat states transition messed up, instead of A->B->C->A it became A->C->B->nothing, with no more possibility to go back in A (battle stance) and inverted transitions for B and C

having this addon enabled also caused bartender3 to no more chance action bar on stance change (in combat)

any help please? I can't really figure out what happened :S