Background absolute image not showing on mobile

Hi Webflow community!
I’ve got an issue with a background image that I’ve set on absolute position for animating a parallax effect.
Everything seems working fine when I visualize through designer but when I publish the page and try to see it from different devices, the background image is not visible unless I turn the device sideways (from portrait to landscape).

Here is my site Read-Only: Webflow - Ivan Milanovic Zahnarztpraxis

and here is the site link to test on mobile or other smart devices:

What do you think is the problem?
Any help is appreciated :slight_smile:

Can you include a video? The green patterned background is visible to me on all the breakpoint sizes.