[SOLVED] Z-wave 2.4 M6 association group Controller or node_1?

I have upgraded from 2.3 to 2.4 M6 and have an option of node_1 which some of my older devices have, or controller. Which one should I use? I have a newly added device that doesnt seem to report back to the UI the state from manual switch changed - not sure if perhaps it should be node_1 but I dont have that option on this device

I think that node_1 and Controller are the same thing. You can select multiple nodes.

Here is an example from one of my nodes (FGMS001 Motion Sensor):

Note that not all Zwave devices support multiple nodes for the association group.

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So standardising on Controller should be fine?

Should be. That is what I use.