Photos stuck on downloading [number] originals
Photos have been stuck on 'downloading [insert number] originals, for example, in my case, photos are 'downloading 21 originals' on my Mac, but everything is fine on my iPad, so can someone please help? I have tried quitting and re-opening Photos, still stuck. The screenshot below may help. Also, the number in downloading [number] originals doesn't change.
MacBook Pro 13″, macOS 10.15