I have been working on this app for months now and from as far back as I can remember I have never had an issue with segues. The code is unchanged in terms of calling
So basically the segue was freezing because of the
UITextView's I was using in the
destinationViewController. The following fixed the issue:
This was the fix for me, and from the research I have done on the issue it seems this is a bug in iOS 9 and Xcode 7.
NOTE: Removing the text in the UITextView (or making it longer then ~12 characters) is sufficient to work around it, no need to delete and recreate them. This is fixed in Xcode 7.1.1 and later.