The upload button does not allow me either to import any video I select, but I could successfully add some videos to my Photos Library on www.icloud.com by sending an iCloud Link to a folder with videos from my iPhone. The iCloud Link appeared in Photos at www.icloud.com and I could add them from there to the library. This helps, when we have two different AppleIDs and want to move videos between two different iCloud Photo Libraries.
![](https://discussions.apple.com/content/attachment/c2f9d446-a1a5-486c-a420-5a222b62aa5d)
What is confusing, however, even after adding two videos, the Media Types section in the sidebar is still not showing an item videos. I have to find them in All Photos.