Hello Caspar,

Thanks for keeping in touch.

I am not replicating this issue on my end:

Please try clearing cache and check again.

Thanks.

Hi Caspar,

Please try this css:

@media only screen and (min-width: 1px) and (max-width: 999px){
.page-submenu ul {
    position: initial;
    display: block !important;
}
}

Thanks.

Hey Again,

Please remove the CSS provided earlier. Also I can see it getting sticky after the page is scrolled past it ?.

 Thanks 

Hey Again,

Thanks for the video, it helped identify the issue. 

You seem to have set the Overflow Visibility to Hidden in the Row Settings which is making the menu not appear when not sticky: 

Click on Image to View Larger

Thanks 

Glad to help, let us know if you have any other questions. 

Thanks