Hi Jonny–thanks for getting in touch!
We’re happy to help look into this for you, but will you please post this to our PRO forum? We use the Pre-Sales forum here to answer questions about the plugins before purchase and provide support in the premium forums.
In the meantime, it looks as though the issue is directly related to the theme rather than the plugin. It might be worth contacting the theme author to help shed some light on what’s happening because it doesn’t appear to be an issue with the plugin. At the same time, most of the reports I’ve seen about Google Maps not loading have to do with either the Google Maps API being loaded more than once or an error in the theme’s Javascript. I’d start by looking into those. 🙂
Cheers!
Geoff