Since upgrading to XCode8 GM and ios10, all of my views created via Interface Builder are not being initialized correctly until much much later than expected. This means in
I encountered the same issue and try to solve it without luck by referring above suggestions.
Seems it should be a bug for Apple to solve. I finally find a solution by changing to save my XIB document back to Xcode 7.x format and my UI back to normal.
Until Apple releasing a fix, I don't want to spend my time on hacking it.