Dear all,
I've noticed that there are several errors in the identification of buildings in historical centers. For instance for Naples, in southern Italy, several buildings are merged into a single huge building not allowing for the correct identification. The following figure depicts the shapefile provided by OpenStreetMap

while the next figure depicts the building in GlobalMLBuildingFootprints (with building heights) superimposed to the OSM shape.

Best regards,
Marco Gaetani