wppa How to get w#location working

Hi,

I have installed the wppa+ into a fairly vanilla WP installation. I am now trying to get the location map displayed. As described in the documentation, I have added w#location into the Custom box. When displaying the slides, a custom box gets displayed, but it is thin and shows no map (I have checked the EXIF data and it definitely contains the location data (e.g. SubjectLocation: 2015; 1511; 2217; 1330).

I even tried the custom code as described in this post
https://wordpress.org/support/topic/activating-wlocation-within-a-page-display?replies=4
the Hide/Show text was displayed, but the map was not displayed…

I’m sure this is something dumb. Am I missing a setting or a plugin to enable the display of the map?

Thanks