Missing realtime electrical power sensor for SMA inverter (PV production)

It looks like the realtime electrical power sensor (kW) for PV production from an SMA inverter is no longer available in Home Assistant. Previously, this sensor provided realtime PV production data, comparable to sensor.energyhome_electrical_power_from_grid or the power sensor in an NHC Zigbee Smart plug. At present, the sensor appears to be completely missing. In the developer device list, only the CouplingStatus property remains for the SMA device:

{
  'Uuid': 'xxxxxxxxx',
  'Identifier': 'xxxxxxxxxx',
  'Model': 'generic',
  'Online': 'True',
  'Name': 'sma',
  'Technology': 'sma',
  'Type': 'inverter',
  'Traits': [],
  'Parameters': [],
  'Properties': [{'CouplingStatus': 'Ok'}],
  'PropertyDefinitions': [{
    'CouplingStatus': {
      'HasStatus': 'true',
      'CanControl': 'false',
      'Description': 'Choice(Ok,NoInternet,NoCredentials,InvalidCredentials,ConnectionError,ConnectionTimeout,ApiError,UnknownError)'
    }
  }]
}

Historical statistics (kWh) are still available via the statistics and functioning correctly, but these do not seem to replace or expose the missing realtime power (kW) sensor (?)

In the Niko app the SMA integration is working correctly, with realtime kw power available in the Niko app:

Is this a local problem, Niko issue, or HA issue? Many thanks for feedback.

Integration version: v4.17.0 NHC Controller version: 2.25.3.655