In developer mode this happens when you copy GUID’s from other stuff. In this case, someone picked up a GUID from a POI marker. Al POI markers will then be shown as that object. Sometimes funny things occur with bad quality community stuff. Unintended doubles. Also there are cases where a GUID was re-used in Asobo scenery and that is a really silly bug. For example, the SimpleScenery example in the SDK refers to a giant building, instead of the small cube that is intended to be displayed. That is because the developer of some big building started out modifying the little cube of SimpleScenery, without changing its GUID. So anyone who opens the SDK SimpleScenery starts out with that a big building, instead of a small example cube. Tip: when you start scenery importing your objects in ModelLib, do not re-use GUID’s from anywhere, and if you do, always change a little thing in them. To keep them unique… In Blender I always set generate a new GUID for objects I export.