Not getting all the data from cloudWatch

Hi all,

I have followed the instructions on how to connect Grafana cloud with aws cloudwatch.
After the connection was successful I downloaded AWS Lambda dashboard.
When viewing the boards is see not data (some data from cloudwatch is available).

Can anyone assist on this issue?
I think this is related to the premissions on the AWS side, but I am not sure what to do.

Thanks for the help,