I have a complex view hierarchy, built in Interface Builder, with nested UIStackViews. I get \"unsatisfiable constraints\" notices every time I hide some of my inner stackviews.
I hit a similar problem with UISV-hiding. For me, the solution was to reduce the priorities of my own constraints from Required (1000) to something less than that. When UISV-hiding constrains are added, they take priority and the constraints no longer clash.