Event 4776 Error Code: 0xC0000234 but account not actually locked out

I am coming across several instances where a user will get the error code 0xC0000234 for event 4776 and Failure Reason: Account Locked Out for event 4625 but the account never actually locks out. I cannot find a corresponding event 644 (windows 2003) or 4740 (Server 2008 and up) on any of our AD servers.

Any idea why this would register as an account being locked out, but not actually lock the account out?

Thanks!