no audio on UHD

[primetime73]

I noticed while watching UHD on my HR10 that the audio drops out for extended (more than 15 minutes at a time) periods during the past week or so. Last night as I checked the channel periodically I was not able to hear the sound at all. This the only channel I am having the problem with. Has anyone else had this issue or does anyone esle know how to fix it?

running 6.3b