[OTGW] Opentherm Gateway cannot set temperature

The value for the requested temperature is always 0°C, if I set it, it stays a few seconds on the requested temperature before going back to 0°C.
On the room thermostat (Remeha Isense) the requested temperature does not change.
The room temperature is controle-able with the room thermostat.
All the other services are working fine.

Screenshot from 2022-11-22 08-43-54