Ciao Riccardo,

in Template Options > Custom Code > Custom CSS please add:

#sp-top1, #sp-top2 {z-index: 9991;}

Solved thanks so much.

Why this did not happened on other sites with helix too? Is it related to pagebuilder layouts?

It's becuase elements of page (graphic shapes) overlap the header, order of layers.

I shared universal CSS code that can be used in all templates in case of...