This problem seems to be only on the Multimedia Upload Screen and not on the Artwork ones. I think since it makes me upload a thumbnail, the UI breaks when I keep adding more information to it which stretches the menu down and causes this problem. It's a big problem since the submit button vanishes, but it's still clickable once I find where it went.
NORMAL (Without Tags)
SCROLLED DOWN (Without Tags)
NORMAL (With Tags)
SCROLLED DOWN (With Tags)
Customer support service by UserEcho