Discrepancy between real height data from OpenStreetMap (OSM) and the ones of the dataset.

In the Metropolitan City of Bari (Apulia, Italy), I have identified significant discrepancies between the building heights in my dataset and those in OpenStreetMap (which I have personally validated). Notably, some key buildings are misreported by a wide margin—for instance, a structure that is approximately 45–47 m tall is listed as ~16 m in the dataset.