CloudWatch Datasource AWS/NATGateway Namespace - No data

So I have several Grafana graphs successfully displaying metrics from a AWS CloudWatch query for name spaces like AWS/DX. But when I use AWS/NATGateway namespace and any metric provided with NatGatewayId dimension and a legit NAT gateway ID I get No data. Has anyone successfully created a graph using AWS/NATGateway namespace with the NetGatewayId dimension?