ArTiqR on "[Plugin: Responsive Menu] Menu font goes to default on mobile browsers"

Hi, this is an awesome plugin, and surprisingly modular to boast. I am definitely considering cashing out for the Pro version if it weren't for this bug I can't fix. I've tried so many things now and I'm clueless and out of ideas, but surely I can't be the only one with this problem? I can't find answers anywhere, so here we go.

With the font I've chosen for the menu, it should look like this (and it does this on desktop browsers)

But on every mobile device I've tried it looks like this. Not really a fan of this font, it seems stretched and out of place somehow. (yes, I'll have you know I'm very picky!)

The font I use (or try to use) is Myriad Pro, it works on mobile devices. Tried serveral others, with no success at all.

So in conclusion: I can't change the mobile menu font when it's a mobile navigating it, making this menu quite annoying.

Anyways Cheers, it's a nicely done plugin nevertheless!

(The site in question is this)

https://wordpress.org/plugins/responsive-menu/