[Python] Error while setting a value using Actuator on kuksa

I am using https://github.com/eclipse-kuksa/kuksa-mock-provider in my local to try. My kuksa broker is up and running fine.

When do GET for a actuator path 'Vehicle.Body.Windshield.Front.Wiping.System.Mode', it works fine. However when I send value via actuator it throws error saying provide doesn't exist. I don't have any custom code, but as I understood , the actuator flow should work.

./grpcurl -plaintext -d "{\"signalIds\": [{\"path\": \"Vehicle.Body.Windshield.Front.Wiping.System.Mode\"}]}" localhost:44444 kuksa.val.v2.VAL/GetValues
{
"dataPoints": [
{
"timestamp": "2025-07-25T01:30:59.091750070Z",
"value": {
"string": "STOP_HOLD"
}
}
]
}




./grpcurl -plaintext -d '{
"signalId": {
"path": "Vehicle.Body.Windshield.Front.Wiping.System.Mode"
},
"value": {
"string": "STOP_HOLD"
}
}' localhost:44444 kuksa.val.v2.VAL/Actuate
ERROR:
Code: Unavailable
Message: Provider for vss_id 105 does not exist


It is same with other actuator paths as well.

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