Background fixed even if it should not (only mobile)


I’ve set up a background image that should stay fixed while scrolling. Everything works well in preview (in all canvas) and in the actual published site as well, but only for desktop / tablet. In phones it’s not behaving as supposed to and can’t figure out why. I’ve tried both Safari and Chrome on all the devices.

Thank you in advance.

Here is my site Read-Only: Webflow - Pete-1