Hi, @harobinson
I’m linking this here: ZWave Handler for ManufacturerProprietary Command Class - #3 by harobinson as I think it’s related.
Can you share the log of the incoming message that you’re trying to handle, please? You should receive the Z-Wave message and it should appear in the logs despite not being handled yet.
In the meantime, I’ll ask the team for more info about those fields and the handler for that CC, maybe it behaves differently than others I’ve seen.