Can't Play My Music on iPad App

I just purchased the app for my iPad. When I save or publish my drum parts from my desktop, they will not play on the iPad or my iPhone app. It just shows a blank and doesn't play anything. I can play it on the desktop Mac app or online, but not on the iPad or iPhone apps. Is there something that I need to do to get this corrected?

I bought the pro version. It doesn't do me much good if I can't use all the features on my iPad.