.NET Core: Cannot connect using Oracle Wallet

Hi!

I am trying to connect to the database using Oracle Wallet and Oracle.ManagedDataAccess.Core v3.21.1

In my SQLNET.ora I have:

WALLET_LOCATION =

  (SOURCE =

   (METHOD = FILE)

   (METHOD_DATA =

    (DIRECTORY = C:\Temp\wallet\wallet_test)

  ))

SQLNET.WALLET_OVERRIDE = TRUE

From the command line I can run this and successfully connect.

sqlplus /@database.alias

In a simple .NET Console application I have:

OracleConfiguration.WalletLocation = @"(SOURCE=(METHOD=FILE)(METHOD_DATA=(DIRECTORY=c:\temp\wallet\wallet_test)))";

OracleConfiguration.SqlNetWalletOverride = true;

OracleConfiguration.TnsAdmin = @"C:\Temp\wallet";

OracleConfiguration.TraceLevel = 7;

OracleConfiguration.TraceFileLocation = @"C:\temp\wallet";

OracleConfiguration.TraceOption = 7;

using var connection = new OracleConnection("User ID=/; Data Source=database.alias");

connection.Open();

And I receive Oracle.ManagedDataAccess.Client.OracleException: 'ORA-01017: invalid username/password; logon denied'

In my trace file I have:

2021-03-30 14:55:56.109247 TID:1  (PRI) (CP) OraclePoolManager.FetchSEPSCredentails() FetchSEPSCredentails => Querying Data Source (TRIAL: 0): database.alias

2021-03-30 14:55:56.125621 TID:1  (NET) (SQLNET) Wallet Location = c:\temp\wallet

2021-03-30 14:55:56.212667 TID:1  (NET) (SQLNET) SEPS userid is null.

2021-03-30 14:55:56.212819 TID:1  (NET) (SQLNET) SEPS password is null.

2021-03-30 14:55:56.212840 TID:1  (PRI) (CP) OraclePoolManager.FetchSEPSCredentails() FetchSEPSCredentails => Got Credentials from Client Wallet

Am I missing something blindly obvious?

Thanks,

James