I had followed the instructions in another post about consolidating my editor projects and videocache files from 3 different iOS devices that have been used with my Mavic.  Projects and the video clips came over fine, with one exception:  the video files no longer have a thumbnail image associated with them.  I tried saving to the device and then reimporting, but that loses the correct time/date stamp.  Is there a way to regenerate the thumbnails on these manually consolidated files?

I had followed the instructions in another post about consolidating my editor projects and videocache files from 3 different iOS devices that have been used with my Mavic.  Projects and the video clips came over fine, with one exception:  the video files no longer have a thumbnail image associated with them.  I tried saving to the device and then reimporting, but that loses the correct time/date stamp.  Is there a way to regenerate the thumbnails on these manually consolidated files?