The "External maps" links (shown when a map is full screen and the button is clicked) do not update themselves when the map is interacted with, for example zooming in, and/or clicking on a point marker. This is especially noticeable on maps with multiple point markers and/or other features. Example from a wikipedia user at https://en.wikipedia.org/w/index.php?itle=Wikipedia_talk:WikiProject_Western_Australia&oldid=966137831#Map_of_State_Register_of_Heritage_Places_requiring_photos :

There might be a bug in the first map. I did this:

1. Click the map, which takes me to https://en.wikipedia.org/wiki/Wikipedia_talk:WikiProject_Western_Australia#/map/0
2. Zoom in on Comer St, South Perth/Como, to the point where scale marker shows 100m
3. Click on the blue marker, to display Pagoda, Como, 31.990915°S 115.855236°E
4. Click "External maps" in bottom right corner, then Google Maps
5. Google Maps shows at https://www.google.com/maps/place/31%C2%B056'23.3%22S+115%C2%B056'01.5%22E/@-31.9398062,115.93375,10z/data=!4m5!3m4!1s0x0:0x0!8m2!3d-31.9398062!4d115.93375?hl=en and the marker is in Redcliffe, nowhere near the Pagoda.

I get similar problems with Kingstown Barracks on Rottnest - Google Maps goes to the same place in Belmont/Redcliffe, as does Open Street Map and Bing Maps. Same problem with Pale Moon, Firefox and Google Chrome.
Mitch Ames (talk) 08:17, 5 July 2020 (UTC)

The expected result would be that the coordinates of the last feature you clicked will be the ones used in the external map links, with a zoom level that matches the current zoom of the katographer map.