Davinci Resolve will not show my file in Media Storage

I am using version 12.2.0.013. When I look for my file in the Media Storage it doesn't list all of my files. I have 4 QuickTime Movies in my folder but it only shows 3 of them. The one I need isn't shown. This QuickTime movie was created with a Blackmagic recorder. The only difference between it and the other three is size. The one that doesn't show is 34 GB. Why won't it show this file? What do I have to do?