I've been trying to make a movie out of 6 video clips that I took on my phone in an mp4 format. I complete the project, everything looks great upon preview, but the rendered movie has audio, but no video, in some of the places where the video clip transitions would be. All I see is a black screen. The length of the black screens varies, but it happens on more than one occasion in the rendered movie.
I am using Movie Studio 15, and my PC is a Windows 10 operating system.