Dropped to 1080p 30fps on iPad mini 2 and it works great now. 60fps is too much apparently. Still have the decoder error showing though. I've researched a little and it seems to be a controller RMA to resolve.
I also just noticed that in Overall Status I have:
"Video Decoder Encryption Error", and
"Hardware malfunction. Contact DJI Support for Repairs"
Great. I've only had it a few days....