Header Media no longer allowing video link

Hey there! Just tried out the Music theme and it's pretty dope! However, I was configuring the theme settings and originally I had a youtube video playing as the header media, but after I uploaded a new fall-back image, the ability to paste a youtube link disappeared and it no longer plays. There is now an alert at the top of the left side bar stating: This theme doesn’t support video headers on this page. Navigate to the front page or another page that supports video headers. Any idea how I can revert to the video, and why/how this happened? Thanks!!!