Billkro

Bug Description:

After successfully logging into the Windows application using the Store Authentication Code, User Code, and PIN, the user is authenticated and can access the system. However, when attempting to log in again using the same User Code and PIN, the login fails and displays an "Invalid User Code or PIN" error.

Expected Result:
The user should be able to log in repeatedly using the same valid User Code and PIN unless the credentials have been changed or the account has been disabled.

Actual Result:
Subsequent login attempts with the same valid User Code and PIN fail, displaying an "Invalid User Code or PIN" error.