This just started happening to me also it would have great audio on espn then nothing picture was good and I still got audio on every other app on my iPad it was just espn had no audio anymore
I reinstalled also and nothing I check the button everyone tals about that mutes everything but nope...still great pic no audio
The bam I remembered that I had just previously watched the playoffs on the espn app and I had used an aux cable to hook iPad to my boom box so I could get louder audio and was great
So I after much tying to figure it out....I still had the no Audio prob I hooked it back that way and sure enough SOUND
So something with the app itself has for whatever reason made it mpossible for me to use espn audio through the iPad itself I have to hook back to boom box for my audio needs.....ESPN if your reading this fix that,.......I hope this helps someone because I was slots for days no audio