Problem getting video project started - can't create New Video Group or Import Media to Timeline
Photoshop 23.1 / macOS 12.1 Monterey
I want to create a short video from three video clips and I can't get past the starting line. When I click on the Filmstrip icon in the Timeline, the option for New Video Group is greyed-out. When I choose Add Media from the same pop-up, I'm able to navigate to a .mov file on my hard drive, but when I choose it and click Open, nothing happens.
What am I missing here? TIA for any help you can offer.

