Background image of thank you page is tiled - how to fix?

No matter what I change the settings of the form's background image to (repeat, fixed, cover, etc.), it appears tiled on the thank you page:

This looks pretty bad, so I was wondering how I can fix this.

I'm guessing this is the form you're currently working on https://www.jotform.com/70476031195151

Yes, the Thank You page shows a tiled background on edit but if you'd do an actual submission, you would see that it looks like this:

Just open your form https://www.jotform.com/70476031195151 > fill it out > then Submit it. You will see the Thank You page background shows up just fine.

In case you see it differently, get back to us with a screenshot of the actual Thank You page so we can have another look.

Oh, I see. Thank you!