I will post a video link to YouTube since I can't explain it well enough in text
If this is not a bug please explain how this is useful and why it was added to the game
I dont remember this behavior prior to 1.15
In the 1.14.4 version it is not an issue any more
The debug report has been attached
Yes it does.
Added every time the Mojang loading screen is loaded while the game is running this loss of sound issue happens.
Here is the link to the video
https://youtu.be/YdLXcZVqxvI