Hello,
Not sure if this was a change by flynax support but my mobile navigation menu doesn't respond at any breakpoint. I can't find where the stellarnav setting is making it mobile at max-width: 999px - that's where it's going mobile.
I was changing the font-size in the header.tpl file for the navigation links to x-large when I found this issue. I have removed that font-size adjustment and the menu works. The breakpoint for the navigation menu however does not, The breakpoint is not needed it if I leave the font-size as is. I am thinking of doing that, but I would like to know if anyone knows why the breakpoint (in the stellarnav javascript) will not work.