Follow the fix in MCPE-175138 . I did it and it worked for me. I switched my sound from 24-bit to 16-bit, and the game now works on my desktop. Tim Flick gives directions in the comments section.
I've been looking at other Open Issues and MCPE-186011 is the issue I am having.
I'm having the exact same problem. Have you found a solution?
I went into the computer settings -> Apps -> Repair and Reset. Nothing fixed this. Also I found the version: 1.21.3104.0
MCPE-175138 has the fix. Switched my audio from 24-bit to 16-bit and now the game loads and plays.