I have a model with a fill surface, when I open it's fine, when I ctrl-Q my fill surface fails. I open it to find the problem and the patch boundary selection box is empty. So I reselect, it ok and it's fine. Then I ctrl-Q again and same thing all over again. Anybody seen this, heard about this, any suggestions.
And no I can't post, wish I could. And I'm running 2012sp2.
I'm still running 2010, so I can't talk about how 2012 handles Fill Surfaces. I will tell you that I have seen some very strange behavior with Fill Surfaces in earlier versions. We've had several Fill Surfaces that would alternate between broken and OK as we hit ctrl-q; good, bad, good, bad... We had one that failed every third time; good, good, bad, good, good, bad... None of these involved losing the boundary selections. I haven't seen behavior like that for some time.