It does seems to be working. Here’s a sample:
I think the issue is that it seems only two (that I was able to find) entries have latitude/longitudes entered with their addresses.
Connections will geocode addresses when there are added but only if the geocoding service provider returns a match for the address.
The geocoding service provider defaults to OpenStreetMaps (OSM) now that Google charges for using is mapping services. Geocoding using OSM is sketchy, at best.
If a Google Map API is added, it will instead default to using Google as it has in the past.
The entries were imported two month ago by CSV import, correct? If it is, that was before the multiple geocoding service provider support was added, so geocoding would have default to Google. It is possible, you did the import prior to having the Google Maps API key setup, that they were blocking requests from your site.
For the entries in the
883451, edit the entry and hit the Geocode button by their address and then save the results. I suspect they will now be returned as a result. Let me know.