I upgraded to Catalina 10.15 the other day and all my movies that are stored on an external hard drive have disappeared from the TV app. All I see are the purchases made a few years ago. I have 700 home mo vies that are still on the hard drive. When I try setting the hard drive as the file source in preferences all I get is an error (-54).
How can I set the external drive as the source for all the media files?