i spelled mine correctly
If sounds like if the node is not capable of sending multi-channel messages, the target will be forced to 29.0. What device is Node 21?
You would need to look in the ozwcache*.xml file to see if it does suport multi-channel. Something like this will be in the Node’s XML.
<CommandClass id="96" name="COMMAND_CLASS_MULTI_INSTANCE/CHANNEL">
If it’s not there, then I don’t think the node can be configured to target any specific endpoint.