I may have solved my own problem as just found this on
Common Issues - GPSrChive GPSMAP 66
www.gpsrchive.com › GPSMAP › GPSMAP 66
55.
GC Live function fails to download any additional waypoints (Parking, Multi-cache stages, etc.) when available, effectively rendering the GC Live 'feature' useless for a large percentage of available geocaches.
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