see you here:

https://www.joomla51.com/forum/novah-v-1-1-4-double-menu-item-heading

Best regards Marco L.

Thanks. I try all the code mentioned in the ticket. Unfortunately the header remains visible. Is there another solution available?

try: article options | list layouts | disable Table Headings

Sorry to ask, but did you enter it in the correct style that you used?

try: article options | list layouts | disable Table Headings

Yes, it is disabled.

Sorry to ask, but did you enter it in the correct style that you used?

What do you mean with correct style?

In a forum, you often cannot tell what level of knowledge the person asking the question has.
It would not be the first time that someone makes a change in the wrong template style that they do not even use on their website. Then they are surprised that nothing has changed.