I’ve been trying to figure this out all night. At multiple points in the Dunkirk UHD disk the explosions cut out. I found a common solution that worked for some - turning off BD Audio Mix setting - but it did not work for me. When I do that I lose my main English track (audio 1) It does however work when I turn my sound bar off. BUT before I knew of this possible fix, I First turned the sound bar off and the explosions still dropped out on the TV audio. I’ve been switching things on and off to no success.
Any tips / solutions would be useful. Looks like this is a common problem.