debugging AutoLayout exception with no build errors

I have an OSX app built on 10.11.1, deployment target 10.9. The app builds and runs without any AutoLayout issues or warnings from Xcode. I have ambiguities turned on. The problem is when I try to run the app on 10.9. Although the app will run without fatally crashing, one of its main windows w

NSBundleResourceRequest with Initial Install Tags not available immediately?

I've got an app, with a pre-built Core Data persistent store, that I'm trying to use with On-Demand resources, set up with Initial Install tags. Trying to use it on first run in the App Delegate, I'm finding that on a real device attached to Xcode, the resources are not immediately available on t

Does tvOS allow playing purchased iTunes videos from my own app?

Does tvOS allow me to write my own media-watching app to play back iTunes store DRM content? That is, if the user of the Apple TV has purchased a TV show or movie from the iTunes store, can I set up a view in which to play that content back, and can I access the purchased media catalog? Thanks,