Has anyone else had this problem?

The sound on my Asus 202 Vivobook is fine. No problems. When I add sound to a movie project, it turns off. Sometimes this happens, sometimes not. The sound can be recorded by my voice, or it can be a song added to the movie.

What I'm saying is, the sound aspect of Windows Movie Maker is wonky. I cannot comeup with a better phrase than that.

When I restart my laptop the sound comes back just fine.