Blog page menu item causes all other links to stop working


I’ve created a dedicated blog page and a corresponding menu item in my primary menu. When I click on this menu item it works fine but it causes all my other menu items to stop working. I am guessing this is because all my other menu items are linked to section IDs on my front page. As the blog link takes me away form my front page these cease to work.

Does anyone have any advice?

I am hosting the illdy theme locally so can’t post an example. However, I will come up with something if needed.