The issue could be a red herring as I seem to experience the issue with the game closed. Of course minutes after I made the initial post.
However, I have never experienced this issue until immediately after launching the game.
After starting up the game for the first time, the game seems to turn down the master volume of my PC. The frequency is sporadic and the degree also changes between a very small amount, to a very rapid decrease, until the volume is zero and I have to turn it op again manually. It always...
