When the input is WKID 3857 all events are reverse geocoded to the North Pole.

Workaround

1. Add the Projector Processor immediately after Reverse Geocode Processor in order to project the data into the correct coordinate system.
2. The Projector Processor may not be required. If the data is written to a feature service and if the geometry in the event has the spatial reference in it, the data will be projected on the fly by type 'WKID 4326', to some other spatial reference. But this is only true if the spatial reference on the outgoing data is actually specified in the geometry.

Schritte zur Reproduzierung