Navigation Mobile Toggle Menu Display Issue

I Need Help
1

When using a toggle mobile menu, it stays visible when you go to the Desktop breakpoint. It should not show on the Desktop. But, you can’t unselect Desktop visibility, because I’ve selected Invisible by all by default in order to set this up. How can I achieve the same thing, but keep it hidden on the desktop?

Video of the problem: https://youtu.be/yDIBwFxw8ww

4

I’ve had things ‘spill over’ from one Blocs preview size to another - but it’s only happened on the Blocs preview when I’ve resized, like your video.
Have you tried it in a proper browser from an online source? Might be worth a go as it could just be specific to your setup and the inbuilt preview.