I've found out that the DB2 dropdown node sends a _session messagw as part of the full msg.
The _session message look like this
{"type":"websocket","id":"3e9d699ebed3fa04"}
and it blocks the payload to be received by my HeatPump via a websocket node.
The msg from DB2 "number input" or "text input" nodes does not contain a _session message
I've created a workarond to extract the payload and then delete the original msg before setting msg.payload again.
Is this _session message normal and needed for anything?
