Nav bar not showing correctly

When I export my site, the Primary menu in the header is showing as mobile (hamburger) even though I have it set to show only when its mobile. I have another Menu called General which appears in the Dynamic area and I want this to be a mobile menu. Is this interfering with the Primary menu?

In Blocs itself everything is fine, the menu appears as it should, its only when I export.

Can anyone shed any light on this.