Describe the bug

I am using ServerlessClusterFromSnapshot to create cluster from snapshot. for the credential, I tried both rds.SnapshotCredentials.from_generated_secret("admin") and rds.SnapshotCredentials.from_generated_password("admin") . (I do not know the difference between these two methods!)

It creates the cluster successfully but I cannot connect to it with the generated secret in the secret manager. I tried query the database with secret ARN, but no luck.
The snapshot was taken from a database with the same "admin" username.

Expected Behavior

I should be able to create a serverless cluster from the snapshot and connect to it with the newly generated secret.

Current Behavior

It won't let me connect to the database with generated secret

Reproduction Steps

Take a snapshot from a serverless cluster. Then use the ServerlessClusterFromSnapshot method and pass rds.SnapshotCredentials.from_generated_secret("admin") as credential to it.

Possible Solution

No response

Additional Information/Context

No response

CDK CLI Version

2.13.0

Framework Version

No response

Node.js Version

16.15.0

OS

Debian 10

Language

Python

Language Version

No response

Other information

No response