When I try to export the render to mp4 it won't do so. In fact, a warning comes up that it doesn't have permission to do so. This is very frustrating as I need this feature to work on boords. In fact, I did this last week and it exported to mp4 just fine. I'm the compose of the music I use, btw, so I know it's not a copyright issue. Below is a screenshot of the error message I get. Please fix this bug as I need this program for the project I'm working on. (4 short films) thanks, Jeff