I don't think it's a file size issue. I have a 1 hour interview that uploaded fine, and when add on 16 seconds I get the spinning upload forever icon you are experiencing. And because that process never completes, other features in Podcast are not available because apparently audio processing hasn't  completed. I can't cancel it either - have tried deleting cache etc. ... View more

I feel for you - I just did a 1 hour interview, remote guest, and encountered the same problem. At the moment, this is a fun toy but can't be relied upon for production work. ... View more