Creative Cloud and syncing is garbage - All of my files are now missing in video projects?

File syncing with Creative Cloud is the most confusing part of Adobe Rush.  I tried to sync all of my projects today, and the video clips in each project were gone!  They showed up in Rush as red blocks with ! exclamation points in the middle.  So where did my files go?  I went into Creative Cloud, and there is nothing there.  Nothing syncs with Creative Cloud.  I guess I need to create a project and then delete it immediately.