Had very similar issues with Gears 5 on windows store and could never fix them. I have audio in the splash screens and menu, and first rendered cutscene, but as soon as it loads into the first in game cutscene (Starts with a TV) there is no audio what so ever in the cutscene. After this cutscene all I can hear is gun sounds, no music, chatter, nothing.
Sometimes the game crashes on launch which results in my entire PCs audio to fail and leaves a gears tactics process running which is impossible to kill unless I restart the PC. Tried loading into the benchmark to see if this had sound but that would just sit on an infinite loading screen with some ambient windy noises.
Anyone got any ideas? I’ve tried disabling my sound card and everything else I could find online but nothing works! Just seems weird that only this and Gears 5 have had this issue, no other games i’ve ever played have!

I dont user any third party apps, DirectX is all up to date, I dont have a Nahimic Service on the PC, and the LatencyMon returned all green.