I am creating widgets in Grafana for monitoring AWS resources, including Lambda functions. For this purpose, I am creating variables that filter to just my team's Lambda functions using regex. Some Lambda functions are missing, however- even with the regex blank (to show ALL Lambdas in the AWS account).

I would think that Grafana pulls a manifest of all the Lambdas (or whatever AWS namespace is chosen) but clearly it's not doing that.

A cursory Google search suggested invoking the missing Lambdas to ensure that they have data in CloudWatch for Grafana to pull. I did that, but still no dice.