"It is displayed as a fire hydrant, but is in fact a drinking water tap, too. It is also displayed on an official Trinkwasser map."
OSM snapshot date: 2021-10-02T11:23:12Z
POI name: Trinkwasser
POI types: amenity-drinking_water
There is a drinking water and a hydrant mapped, but depending on the zoom level, only one renders. That is nothing that needs to be corrected. Some renders show both, some not.
OpenStreetMap is a map of the world, created by people like you and free to use under an open license.
Hosting is supported by UCL, Fastly, Bytemark Hosting, and other partners.