Error when using video for scene background

Every time I try using a video file for a scene background, I get the same error. “Canvas drawing failed for the BackgroundLayer, see the console for more details.”

It doesn’t matter if I use an MP4 or WebM file. Both give me the same error. When I open the file in my asset library, they work fine, so I don’t think I have a file corruption problem.

Any suggestions on how to fix or troubleshoot.