So I had created a notification in the flow under "Recv access event over MQTT". It followed directly after "Check if user is known." The notification was being sent twice with two different messages. Then I noticed that line 12 of the Javascript node was supposed to define msg.payload as "" but was spelled msg.paylod, which means the return msg; line was sending the "adding event" information in addition to the access information. I changed it to payload and tested it and it works.
So I had created a notification in the flow under "Recv access event over MQTT". It followed directly after "Check if user is known." The notification was being sent twice with two different messages. Then I noticed that line 12 of the Javascript node was supposed to define msg.payload as "" but was spelled msg.paylod, which means the
return msg;line was sending the "adding event" information in addition to the access information. I changed it to payload and tested it and it works.