So I have ran into this issue as well when streaming music. When using the soundcloud app with beats audio on there is always a slight pause with about 5-10 seconds left in the song regardless of what radios I was streaming through. I turned beats off and have not had an issue since.
I don't know if it's an app conflict, the genre of music I listen to(almost exclusively EDM) or some other factor I've never even considered.
Oh, and it's only soundcloud. The other apps I stream such as play music and YouTube do not do this. I'll try testing it out with my pod catcher apps and see if they do it.
Never forget before buying a phone Motorola breaks their promise of updates.