Google Cloud Monitoring issue with AWS

[dannya]

I have an issue with connecting my AWS account. I did everything (twice) following this docs: 

https://cloud.google.com/monitoring/settings/aws-accounts

Now I can view metrics for my EC2 instance. But I still can't see anything for AWS RDS & AWS Lambda. Why? Any additional steps?

P.S.

All this metrics are available from AWS CloudWatch interface