With Xcode 7 and iOS 9 support, apps need to either explicitly opt out of split screen, or else use a launch storyboard and support for all orientations.
Until/unless you get around to generating a launch storyboard, the best option is to add the following to the Info.plist:
and now the PC is working. I also discovered they moved the location of the strip tool, so I am going to have our QA do a full pass on IOS before we call it complete.