Qubino input problem in Domoticz

[Luuki]

In the bathroom we have installed one Qubino - and wired I1 to a lamp and I2 to a heating panel. Each input has its own momentary Gira push button.
In 'real' life it works perfectly - push button 1 and the lamp goes on/off, push button 2 and the heating goes on/off.

In Domoticz we want it to work the same. However, in the dashboard when I turn the switches on/off, the following cases happen:
1) when I turn on the heating: the heating will turn on
2) - when I turn on the light: the light will go on AND the heating will go on
a if I then turn off the light, both will be off again
b otherwise if I then turn off the heating, the light will stay on

In other words: I cannot seem to turn on the light without turning on the heating panel!
I have tried this:
10. Activate / deactivate functions ALL ON/ALL OFF: set on ALL ON is not active and ALL OFF is not active
and both "1. Input 1 switch type:" and "2. Input 2 switch type:" are set to mono stable.

Any ideas? It is starting to drive me nuts..
Let me now if more information is needed! Thanks.