I'm trying to add another keyword to one of my approved videos on P5 and for some reason, I can't save changes. After adding the extra keyword, I click on the yellow Save Changes button at the bottom and the page suddenly jumps back up to where the keywords are. Exactly the same thing happens each time I try and save. If I exit out of the metadata edit page and return to it, I see that the new keyword has not been added. I don't suppose anyone knows how to rectify this?