Google Assistant does not recognize traits name_synonym in italian - google-smart-home

Question

I have an issue with the google assistant and my smart home action.
I have implemented the sync intent and this is what I get:
{
"requestId": "15365687660984021903",
"payload": {
"agentUserId": <user_id>,
"devices": [{
"willReportState": true,
"traits": ["action.devices.traits.OnOff", "action.devices.traits.Toggles", "action.devices.traits.FanSpeed", "action.devices.traits.SensorState", "action.devices.traits.HumiditySetting", "action.devices.traits.TemperatureControl", "action.devices.traits.Modes"],
"deviceInfo": {
"model": <model>,
"swVersion": "1.0.0",
"hwVersion": "1.0.0",
"manufacturer": <manufacturer>
},
"name": {
"defaultNames": [],
"name": "Smart Hood",
"nicknames": ["Cop"]
},
"attributes": {
"queryOnlyModes": false,
"availableToggles": [{
"name_values": [{
"name_synonym": ["Light", "Lights"],
"lang": "en"
}, {
"lang": "it",
"name_synonym": ["Luci", "Luce"]
}],
"name": "light"
}, {
"name": "motor",
"name_values": [{
"name_synonym": ["Motor", "Fan"],
"lang": "en"
}, {
"name_synonym": ["Motore", "Ventola"],
"lang": "it"
}]
}],
"commandOnlyModes": true,
"commandOnlyToggles": true,
"temperatureUnitForUX": "C",
"queryOnlyOnOff": false,
"humiditySetpointRange": {
"maxPercent": 100,
"minPercent": 0
},
"queryOnlyTemperatureControl": true,
"queryOnlyHumiditySetting": true,
"commandOnlyOnOff": true,
"commandOnlyFanSpeed": true,
"temperatureRange": {
"minThresholdCelsius": -100,
"maxThresholdCelsius": 100
},
"sensorStatesSupported": [{
"descriptiveCapabilities": {
"availableStates": ["good", "fair", "poor", "unknown"]
},
"name": "AirQuality"
}, {
"descriptiveCapabilities": {
"availableStates": ["clean", "dirty", "needs replacement", "unknown"]
},
"name": "FilterCleanliness"
}, {
"descriptiveCapabilities": {
"availableStates": ["good", "replace soon", "replace now", "unknown"]
},
"name": "FilterLifeTime",
"numericCapabilities": {
"rawValueUnit": "PERCENTAGE"
}
}],
"availableModes": [{
"name": "operatingStatus",
"name_values": [{
"name_synonym": ["Hood mode", "Motor Mode", "Fan Mode"],
"lang": "en"
}, {
"name_synonym": ["Funzione", "Modalità"],
"lang": "it"
}],
"settings": [{
"setting_values": [{
"lang": "en",
"setting_synonym": ["Normal"]
}, {
"lang": "it",
"setting_synonym": ["Normale"]
}],
"setting_name": "normal"
}, {
"setting_name": "auto",
"setting_values": [{
"lang": "en",
"setting_synonym": ["Auto"]
}, {
"lang": "it",
"setting_synonym": ["Auto", "Automatica"]
}]
}, {
"setting_values": [{
"lang": "en",
"setting_synonym": ["Intensive", "Boost"]
}, {
"setting_synonym": ["Intensiva", "Boost"],
"lang": "it"
}],
"setting_name": "intensive"
}, {
"setting_name": "24h",
"setting_values": [{
"setting_synonym": ["24 hours", "h24", "24h"],
"lang": "en"
}, {
"setting_synonym": ["24 ore", "h24", "24h"],
"lang": "it"
}]
}],
"ordered": false
}],
"commandOnlyTemperatureControl": false,
"queryOnlyToggles": false,
"commandOnlyHumiditySetting": false,
"availableFanSpeeds": {
"ordered": false,
"speeds": [{
"speed_values": [{
"speed_synonym": ["Low", "Slow"],
"lang": "en"
}, {
"speed_synonym": ["Bassa", "Lenta"],
"lang": "it"
}],
"speed_name": "low"
}, {
"speed_values": [{
"lang": "en",
"speed_synonym": ["Medium"]
}, {
"lang": "it",
"speed_synonym": ["Medio"]
}],
"speed_name": "medium"
}, {
"speed_values": [{
"lang": "en",
"speed_synonym": ["High", "Fast"]
}, {
"lang": "it",
"speed_synonym": ["Alta", "Veloce"]
}],
"speed_name": "high"
}]
}
},
"type": "action.devices.types.HOOD",
"id": <device_id>
}]
}
}
Until yesterday it worked perfectly.
The problem is that today the google assistant does not recognize the italian synonym but only the ones in english.
But in the response it uses the italian synonym!
The issue started to happen after I choose the language in the Actions console.
what could the problem be?
Thanks for helping.

Answer 1

There are always updates being rolled out from Google on voice recognition features. Sometimes, new traits are modified/added/removed in the most recent update. The language assistant responds you with depends on the language selected in the device, but how the request is parsed depends on a number of factors. Make sure the italian is selected from the settings in the Actions on Google Console, as well as the device you issue the commands from.
If the issue still persists, please open a bug on our Public Issue Tracker.