Need help configuring WT00Z-1 LED

I’m trying to stop the LED light from turning on for my WT00Z-1 switch. It’s already associated with another switch, works fine that way.

I went to Configuration/Integration/, selected Z-Wave (that came with HA preloaded, I’ve added several entities/devices already), and clicked on Configure.

Under Z-wave Node Management, I selected the Node my switch was.
nodepic1

I did not know which one of the entities to select. I’ve tried with both.

Then under “Node Configuration Options” I chose Configuration Parameter 3 (LED Mode).
Below that I’m given five options for the LED. I’ve tried Always Off, and LED ON when the load is on. I then click "Set Configuration Parameter. Then I restart HA.
nodepic3

The Configuration value shows what I selected, but the switch stays in default (on when load off), and when I go back to Node Configure Options… “LED ON when the load is on” is there. Every time.

I’m not sure what to do. What am I missing? Thanks in advance!