I'm using Build 16.4.3528.331.

I have geotagged pictures that were taken out on the ocean. Windows Explorer and other GPS-aware apps reveals that the GPS coordinates are properly stored with my pictures.

Now obviously since these pictures were taken out on the ocean, they won't map to an address. However, Photo Gallery treats these pictures as if they have no geotag in this instance. All I get is the "add geotag" prompt. But the pictures already have a geotag!