I’m not allowed to edit pages on Hooktheory anymore and they haven’t explained why. I’m just trying to constructively contribute with what I know. And if I did something wrong, I’d love to know.
Do you add comments when submitting edited or newly created tabs? This sometimes happens when the comment you entered is more than 200 characters long. Shoot a mail at support@hooktheory.com and explain what happened, the team usually responds within 24 hours.
For the time being, you may leave the comment field empty or just enter “null” just to be safe.