Apple TV app keeps lowering volume

Hi Support,

I have an Apple TV 4K with the DIRECTV app installed. All has been updated and the app is the most current. It is plugged directly into the internet router and I keep basing issues with the audio going lower while the tv volume does not change the actual volume. This keeps happening on all of my Apple TVs and it is beginning to cause distraction. Is there a bug that has not been squashed when watching DIRECTV on Apple TV?

Jon