I have a problem with the desing in Visual Studio 2015/Xamarin Studio (Mac) with de Xib files.
I designed my View in xib files with your Constrains and the execution and design is done. The problem is when i stop the execution and close the xib file and open again, all controls are wrong and lost the constrains, when i run again the code the controls (in run mode) is watching ok, but the desing is wrong.
What happen with the Xib files desing in VS or Xamarin Studio.
In jpg, we can see the problem, the first view is in design mode and the second is the run mode.