Thanks for the quick reply, I did some checking on the includes. I am using the cupertino jquery-ui theme with the following statement
<link rel='stylesheet' href='cupertino/jquery-ui.css' />
Using Firefox I removed these lines and the scrolling started working. The strange thing is that when added back the scrolling still worked.
I closed all Edge and opened a new session. Scrolling didn't work, I removed the lines, hit F5 and scrolling was working, added the lines back, hit F5, still working. Closed browser and re-opened, still working.
I got someone else to check Edge and Firefox and they had no problems. Looks like the issue is isolated to my computer.