JEM 4.5.0_beta5-2 : Venue map does not show all location

JEM 4.5.0_beta5-2
Site loaded with sample data

Imported 3 locations from a csv created from before all data was deleted with houskeeping.

The 3 additional locations show up in JEM Frontend menu : Venues list.
See:
wega.brusche.be/index.php/jem-frontend/venues/venues-list

However the Venues map shows only 1 of the 3 locations in Belgium

And why is the locations map displayed in "OpenStreetMap" while I selected "Google Maps" in settings ?

Without coordinates doesn't show!

For now, the Venue Map module, Events Map, and Venues Map have been implemented using an OpenStreetMap library.

You need to provide the GPS coordinates for the venue (use the "Convert Address to GPS" button) and review your filters.