[SOLVED] Style assignment to menu - not seeing main menu

I might be missing something very obvious, but I am stuck right now. I have defined a couple of styles with different background images, and assigned them to menu items. Some menu items with no assignment default to the standard. I just wanted to change that, and assign styles to specific navigation items. However, when editing the template (Options/Layouts), in the "Assignments" section, I am only seeing the footer menu and not the main menu. Do you have any hint for me why I can't see the main menu there? I am logged in as super user. Thanks for your advise!

Maybe your mainmenu is not assigned to the style/layout.
If you are using any language plugins?

It's weird. I am sure I had seen the Main menu available for assignment - and the pages are all actually using various Layouts of the surfing style. I can't figure out where else to assign the main menu to the style. The site is all in German, no I don't believe any language plugins are involved, and I didn't install any.

Attached two screenshots - Assignments section of "Layouts", and "Menus" (actually showing that "Hauptmenü" is known).

In case it's relevant - I have Warp Framework 7.3.15.

Sometimes the problem is in front of the computer. To some extend I blame it on the way it is displayed though. I was not seeing the main menu because apparently it is hidden and need to scroll down further. However Safari does not render it in a way it's obvious that there is something to scroll down....

I suspected it was something simple or obvious.

Thanks anyway and have a nice weekend!

Problem solved.