I've had this problem too.
Usually I can get the audio to start in Rhythmbox by restarting the file a few times until it finally plays, but occassionally you'll get loads of no entry signs appearing next to all of your tracks and you have to re-start.
I've had this problem too.
Usually I can get the audio to start in Rhythmbox by restarting the file a few times until it finally plays, but occassionally you'll get loads of no entry signs appearing next to all of your tracks and you have to re-start.