Footer rendering sideways on Browsers

I have a user, that when using the Checkout, sees the footer to the side of the main page. It also stops him from paying. This only happens when:

  • You login as him
  • You use Edge on PC Win 11 or Mac
  • You use Chrome on PC or Mac
  • You use a Safari private window on Macs
  • You visit the checkout page (with something in the basket)

Here’s what it looks like

I will add a secure note, so you can login as this user, and see for yourself. This only happens on this persons account, it affects his mobile phone too. I’m stumped.

Bill.