dt 3.4: cannot drop images on to the map (Windows version)

When I attempt to drag an image onto the default map - at any resolution - no dragging occurs, in the Windows version. The linux version works as described in the on-line documentation. What have I not understood correctly ?

The Map/overview section of the documentation says “darktable will record the new location (longitude and latitude) as part of the image metadata.” But I can find this data only under the ‘image information’ heading, not in the metadata editor function of the lighttable. Is this as intended ?