I used to be able to rearrange the media in the project section. After upgrading to 2017 I can only move files into bins. I cannot rearrange individual clips or titles or sequences nor can the bins themselves be moved. The only thing I can do is move something into a bin. What happened? My icons are so random now I cannot keep track of where anything is. Even the new bins are just stuck in places in the projects section - no order at all. Help!