I've been using Hitfilm Express 2017 for a while now, and it's great and all, but there has been a problem I've ran into. Whenever I add a video to the export queue, and it's all queued out and saved, the final export's video is completely black, but the sound still plays. Sometimes, this can happen with entire videos. It's annoying, and I hate using up around 3 hours of my time on a single video, sometimes even days, and the final export is garbage. Someone here has to know that feeling. Can anyone help me out with this?