It (top bar) also shows on pages:
Blog > Standard with sidebar
Blog > Slider post
but NOT on:
Blog > Masonry style
Upon reviewing few other pages, it appears, top bar appears if there is no photograph at the top of the page. If the page starts with text, etc., then top bar shows. I’m sure my observation is not technically exact but a layman view.
But the question is – how do I edit the top bar menu structure, as I’m not seeing it under Appearance > menus