Homegear thermostat does not update

Hi all,
I am trying to use Homegear to connect my MAX! devices by means of a CUL interface; (original MaxCube has died…)
Basically connection works and I can see my thermostat (valve) devices
BUT
It does not update… I can see values (temperature, valve %) change only when i restart Home Assistant (restarting Homegear does not take effect)
Any suggestion?

This is snippet from my configuration file

Copy to clipboard

homematic:
  local_ip: 192.168.1.251
  local_port: 36845
  interfaces:
    wireless:
      host: 192.168.1.251
      port: 2001
      callback_ip: 192.168.1.251
      callback_port: 36845
      resolvenames: json
      username: !secret homegear_username
      password: !secret homegear_password

Thank you
Michele