Media library lost track of all movies - twice

I may have found the reason for my same problem.  After deciding to create a whole new folder and transferring my video files into it, I noticed a couple of files that appeared out of place, one of them was a “Sample Videos” shortcut!  Somehow I must have inadvertently transferred this shortcut from the Videos folder from my laptop into the video folder on the Hub.  I’ve corrected the problem, and the Hub appears to be working fine again.  I’ll keep an eye on it to make sure it continues to operate properly, but I might suggest looking over your folders for any atypical files.