Node red talking to Cerbo GX via modbus tcp

I’ve installed the large image and enabled Node Red and Modbus tcp on my Cerbo GX.

I have an Unraid server with Home-Assistant and Node Red dockers. On HA I can access all the Victron fields no problem. On Node Red, I installed the necessary nodes as per the image below:

Then I downloaded the attributes list as described here: node-red-contrib-victron-modbus (node) - Node-RED

Once in Node Red, I filled in the client settings using the Cerbo GX ip and port:

When I use a Modbus read node, I can read, say the battery voltage, with no problems:

However, when I attempt to use a victron-modbus node, the debug shows no output. What am I missing? I’m a total noob when it comes to Victron and NodeRed. Any help will be much appreciated!!

Have you tried FC 3: Holding Registers? Also may need to enter the Unit ID of Cerbo GX. (100)