aws-vault error: exec: failed to get credentials for my-user: operation error STS: GetSessionToken, failed to resolve service endpoint, an AWS region is required, but was not found

[ceedjaey6236]

• I am using the latest release of AWS Vault
• I have provided my .aws/config (redacted if necessary)
• I have provided the debug output using aws-vault --debug (redacted if necessary)

[Michael Tibben]

an AWS region is required, but was not found