Are there any other people out there that have a problem with the auto scroll on this song tutorial by Mike Olekshy?

around 1;50 when the song goes and playes the part in the box, after that it shoots back up and scrolls down way to fast and this repeats over and over and can't be stopped until you leave the page.

Tried it with IE11, Edge and Chrome browsers and all the same problem so not browser related.

Already send a query to tech support but no answer or fix.

Herman