KNX temperature control

Hi there, I am new to the forum, and the whole smart house thing. I have KNX installed in my house to control light and thermostats.

I have managed to get my lights working with my newly purchased Homey Pro.

Thermostats on the other hand I can’t get working properly. I have the temperature reading, but when I try to change the temperature from the Homey app, it just goes to the maximum setpoint (33dgc).

Does anyone have any advice on how to get the temperature setpoints working correctly?

(In my KNX address sheet i jsut have 2 addresses, temp and setpoint)