Magellan POI Files | Why doesn't Magellan POI File Editor import all the locations?
Magellan nav systems seem to require a unique name for each POI.
When you import from CSV format, POI File Editor discards any location if the name matches one that's already been imported.
The red light cameras file has unique names and imports easily. Other files, however, may need to be modified before importing to avoid duplicate names.