How to avoid that changing brightness affects state?

[wb441]

Good afternoon,
I am running quite a few different Zigbee dimmers on a Rpi4. I make links and send commands from NodeRED.

1. Ubisys D1's https://www.zigbee2mqtt.io/devices/D1.html
2. Legrand N4411C https://www.zigbee2mqtt.io/devices/L441C_N4411C_NT4411C.html
3. Aqara Lightbulb https://www.zigbee2mqtt.io/devices/ZNLDP12LM.html

The first one for me is crucial, because it

1. Has on board inputs which make it usable with the switches that I already have (Niko)
2. The first input also controls the attached load, even when there might me a problem with the Zigbee network.

I am trying to implement a function in which the second input (bistable) allows to select between a "low" and a "high" brightness setting.

When I program the first input to be the ON/OFF, and the second to switch between Low/High, I get the following phenomenon:
When the first selector is on Off, and I actuate input 2 (low or high), the light switches On.
Essentially, changing the brightness to something other than 0, also changes the state to ON.

Is there a way to control this behaviour? Basically, I want the state, selected by input 1, to not be affected when setting the brightness.

Any pointers? :)