i have rebuilt this twice, and gotten the same result both times. when adding in stretches for the different vis states, they seem to affect objects in other vis states. the block has 3 states - no mullion, 1 mullion, and 2 mullion.
edge beyond and top & bottom frame are shared throughout.
no mullion has its own glass.
1 mullion has its own bottom glass, shares middle mullion & upper glass with 2 mullion.
2 mullion has its own bottome mullion & middle / lower glass.
i am trying to reuse linear paramters for states when i can - which ends up only being the top mullion / glass for 1 & 2.