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A Security Engineer refactored an application to remove the hardcoded Amazon RDS database credential from the application and store it to AWS Secrets Manager instead. The application works fine after the code change. For improved data security, the Engineer enabled rotation of the credential in Secrets Manager and then set the rotation to change every 30 days. The change was done successfully without any issues but after a short while, the application is getting an authentication error whenever it connects to the database.

What is the MOST likely cause of this issue?

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