- On this page, https://de.wikipedia.org/wiki/Auckland_War_Memorial_Museum, a map was added and worked as expected.
- The next day, only the frame was showing.
- The user moved the map to a different position (before the first image) and the map worked again.
- The user set that change back and the error reappeared: empty map.
- After a while, the error was gone.
The problem also appeared on https://de.wikipedia.org/wiki/Benutzer:Ulanwp/Testseite4 with the same map.
This error did not occur for other maps that this editor was working on.