I recently submitted an iOS update to the Apple app store and received an error message telling me that the app binary was rejected.
The error message says that on an iPad running iOS 9.2.1 the app displayed a loading screen but then quit unexpectedly before getting to the home screen of the app.
I have installed a recent iOS test app on an iPad running iOS 9.2.1 and I cannot replicate the problem...it seems to load to the home screen normally.
Here is a screenshot of the error report from the app store:
In my experience, this is likely a signing problem... If the build is preflight enabled, the app doesn't crash, it shows a 'no content' message. Same with unpublished content.
However, I've seen this happen when using the signing tool to sign a build with an expired cert. It will appear to launch but then immediately crash.