Allow videos to be added to albums with photos
I'm so surprised that this isn't allowed that I wonder if I'm doing something wrong, but I can't see a way to add videos to albums. Certainly, if I select multiple photos from a OneDrive folder, then add a video to the selection, the Add To Album button disappears.
+100 on this! Why can't an album contain videos? Non-sense...
Looking at this some more, it seems that it's possible to add videos to albums from the All Photos view, but not from the Files view. This is just bizarre!