Deploy HelloWorld successful but no message in console

Hi guys,
I used the greengrass dev guide for Raspberry Pi. It looked everything ok until the helloworld test. From console no message arrives on hello/world topic
The deploy of lambda function is successful, so I have to assume there is no connection problem.
The runtime.log says

]-Created worker.        {"functionArn": "arn:aws:lambda:::function:GGCloudSpooler:1", "workerId": edited, "pid": 1469}
[2020-03-01T21:12:55.553Z][INFO]-Created worker.        {"functionArn": "arn:aws:lambda:::function:GGShadowService", "workerId": edited, "pid": 1506}
[2020-03-01T21:12:55.555Z][INFO]-Created worker.        {"functionArn": "arn:aws:lambda:::function:GGShadowSyncManager", "workerId": edited, "pid": 1489}
[2020-03-01T21:12:55.563Z][INFO]-Created worker.        {"functionArn": "arn:aws:lambda:::function:GGIPDetector:1", "workerId": edited, "pid": 1513}
[2020-03-01T21:12:55.633Z][INFO]-Created worker.        {"functionArn": "arn:aws:lambda:::function:GGSecretManager:1", "workerId": edited, "pid": 1537}
[2020-03-01T21:12:55.863Z][INFO]-Created worker.        {"functionArn": "arn:aws:lambda:::function:GGDeviceCertificateManager", "workerId": edited, "pid": 1592}
[2020-03-01T21:12:55.903Z][INFO]-Created worker.        {"functionArn": "arn:aws:lambda:::function:GGTES", "workerId": edited, "pid": 1594}
[2020-03-01T21:13:01.736Z][INFO]-Handled functions request.     {"functionName": "arn:aws:lambda:::function:GGStreamManager:1", "invocationId": ""}
[2020-03-01T21:13:01.736Z][INFO]-Started all system components.
[2020-03-01T21:13:01.953Z][INFO]-Created worker.        {"functionArn": "edited:function:Greengrass_HelloWorld:2", "workerId": "edited", "pid": 1643}

Can you help me to understand where to look for at this point? How can I understand from the RPi the lambda python function is executed and messages sent?

Thank you in advance