That’s odd – alternatively, for you to see a page with information about what’s been claimed in your video and who claimed it, go to your Copyright Notices here: https://www.youtube.com/my_videos_copyright …. Then, click the link to the right of the video's Edit menu. Let us know how it goes!
Hmm, you can clear your browser data and restart your browser before trying it again. You can also do it from a different browser to isolate the issue. Also, you can share your experience by sending feedback: https://yt.be/help/feedback .