It has to do with how you setup your page structure in the settings. It seems like you have your top level menu hidden and all you subpages beneath that Home menu in a drop down. Since the homepage is hidden you can't see the drop down.
Check out your page structure and move it around to see what it looks like in the website builder. You can start by moving your Home menu far to the left. That will make it appear on the top level. Anything that is slightly to the right is a submenu.
You should be able to find the structure you're looking for. If not, reach out on live chat and we'll check it out for you.