StackOverflow exception when receiving partial success with private key

When attempting to connect to an SFTP server using multiple authentication methods (a username/ password and username/ private key combination) We occasionally have a partial success message from one part of this then a failure from the other. When this happens we get stuck in an infinite loop where the method TryAuthenticate is called from ClientAuthentication continually until we get a StackOverflow exception.

The server on the other end just receives a huge number of login attempt requests.

I have attached our stack trace and the logs from the other server.
stack trace.xlsx
server logs.txt

Inizia con lo stack trace e i log del server allegati, quindi esamina ClientAuthentication e TryAuthenticate per tracciare come viene gestito il successo parziale tra i metodi username/password e username/private-key. Riproduci la sequenza di autenticazione e verifica che il successo parziale termini o proceda senza ripetere ricorsivamente i tentativi né causare una StackOverflowException.