Hi, Chris
Happy to read you, because I’ve the same issue on mobile and dev team never gave me an answer.
I did the same tests and I’ve also created a child theme and a dedicated page for the map and also tried to not use a WP plugin to display a map and apparently map’s display start to be bad whith the wp_head() function in the php file. of course when I removed it the page is not nice at all … but the map was correctly displayed.
So like you, I’m convinced that issue is coming from CSS issue on the theme, but not good enough the solve it.
Hope this time we will find a solution.
Otherwise, I agree, it’s a good theme and simple to use. it’s a great job
Many thks.
Ollie.