Sticky menu on mobile devicesnot working

Hello support I would like to report that when Header/Mainnav is set to be sticky, menu on mobile devices is not being shown as sticky.

I noticed this on J4 without any changes to template or quickstart, so you will be able to reproduce it.

Thank you!

You can try this custom CSS:

@media (max-width: 575.98px){
.t4-header.t4-sticky {
    position: fixed !important;
    top: 0 !important;
    width: 100%;
}
}