Basically, I am trying to change the appearance of a built in navigation.
When I click preview, the changes show up, without any issue. But when i reload or launch the Site Builder again, the page shows empty ( blocks are missing ). If i remove the Global CSS added by me, and save again, everything is back to normal in the builder (without the css changes, of course).
PS: I managed to find what was causing this issue. The problem seems to appear when I add " position: fixed " in the global css. When I add that line, basically, the navigation disappears in the Website builder. Maybe you can look into this.
