Paypal Hanging After Upgrade - Why?

After upgrading to 4.8.1 when I check out by default stripe is selected then when I use my mouse to select PayPal my computer hangs.

I have never had this problem before in more than 10 years of using CS Cart.

I am trying to decide if this is an upgrade issue, PayPal problem or CS cart bug?

I have tested on another computer with the same issue.

The upgrade backup that as taken before the upgrade has the same issue but I am not confident with the backup as the backup that I was provided to test with has no photos.

Note that if I clear my browser the problem goes away...

So I have hope that it is a simple problem.

Thank you for all suggestions!

I had a file that needed updating now all seems to be working...