[Theme: Melos] unwanted sub menu text wrapping

I recently installed the Melos theme on my site and, for the most part, things seem to be going okay. Except a friend of mine claims that on her computer one of the drop-down sub-menu links has wrapped text.

So on my screen,the text looks like this:
Skills Development Conference

But on her screen, it looks like this:
Skills Development Conferenc
e

She’s tried clearing her cache and reloading the site, but it doesn’t seem to solve the problem. I’m not very experienced with coding, but I’ve tried looking through the CSS and, from what I can tell, there’s not any code included to cause text-wrapping. I’ve also tried changing ‘max-width’ in the Custom CSS section of the Customize area (both making it wider so the text doesn’t wrap at all and making it thinner so the text wraps properly) but neither alteration seems to make a difference.

Again, the menu looks completely fine on my computer, but we’re worried that, if it shows this way on hers for some reason, other visitors might have that problem too. We’d prefer the text didn’t wrap at all, but if it must on some computers, we’d at least like it to drop the entire word down instead of just a letter.

Any help would be greatly appreciated!