Parallax backround not working on mobile or tablet view

Thanks for a great theme. I’m having some trouble setting the parallax backround as it appearing as a static backround on tablet and mobile view. I tried to find a setting for this but so far no luck. I also used old the parallax scroll widget (without the box of static mobile backround ticked) and some other third party widgets but all just show as static in mobile.
Should the parallax work at all for mobile or is it somehow disabled?

I also tried to find a website made with sydney having a parallax backround, but could not find any to verify my issue. I would be most interested if this should actually work or am i putting all my efforts to get parallax going in mobile in vain. Thanks

I would really appreciate if you would tell me if this is something I can resolve with Sydney.

Is a full width parallax backround with mobile possible with Sydney?

Resolving the issue is the the next step. But for now I’m really looking to know if it is possible.
Thank you

Hi there,

Please add the code below into: Customize > additional CSS.

@media only screen and (max-width: 990px){
  .panel-row-style {
    background-attachment: fixed !important;
  }
}

This works on pc with a browser also on low width but with mobilephone chrome it still does not do parallax.
Thanks for the help so far,