Campaign audio messing up

Got all the way to Act 4 on Xbox where the audio started messing up. You could hear the theme and reloads but nothing else.

It could be worse, I killed a corrupted DeeBee and the noise of the resulting explosion “jammed” and I had to listen to it repeat for 10 minutes until the next checkpoint.

Yes I could’ve reloaded the checkpoint I was on but how much damn time do you think I have?!

Same on PC.

Start the chapter again (not the checkpoint!), audio will be back to normal.