Photos cannot play this video because the resource is unavailable.
I am running Catalina 10.15.6 and my Photos library is stored on an external drive and backed up on iCloud. For some reason my videos stopped playing and I receive the message "Photos cannot play this video because the resource is unavailable." I can play the videos on iCloud and my iPhone.
I recently retired my external drive and copied the Photo's library over to a new drive. I've done this a few times over the years without any issues. There's only 1 video I can find that works but I can't figure out why this one works and all the others so far do not.
Any ideas?
Thanks - Milo
MacBook Pro