I created a SFTP server in AWS Transfer family connected to an S3 bucket with the service managing the users. Created 3 users and it was all working fine. I created a fourth user (with the same IAM role attached as the working users) and it did not work and received an SSH AUTH FAILURE when trying to connect. So I added the public key to the user again (assuming I had screwed up). The two keys both show the same fingerprint in the AWS transfer console so I didn't screw up. But still does not work. However, when I checked the fingerprint of the key locally using 'ssh-keygen -l -f <keyname>' I get a totally different fingerprint to the one shown against the keys for that user.
So I removed the key from one of the working users and added the exact same public key back in. That user no longer works but the public key has not changed.
What am I doing wrong here?
