[SOLVED] Two different styles ?

That removed the indents from the mobile menu, fonts are different, and by changing the three menu headings to separators now the menu items when not in mobile run together, see the attachment.

yes the fonts are different, because you are using 2 different templates
if you want a specific font for the mobile menu, you must set it in the interface, else it takes it from the template
from the normal menu the problem is the css that is made to work only with anchors

.nav-pills > li > a

set again one menu item as before, so that I can check few points

OK set the Connect menu item to heading again.

ok, this is also not correct for your main menu, right ?
this is not a problem from the mobile menu, you must use anchors as links, or use another menu like Maximenu CK where you can use Separator types without style changes

Yes it's not correct for main menu in the Protostar template as the menu items as separators run together.
But the menu items as separators work fine in the Yootheme template so this is obviously a template issue not a MMCK issue.
So again thank you very much for your awesome support !!!