Connector Client Secret added to JSON payload showing as null rather than <MASKED> in debug

[Waldy]

I have to authenticate to an API with the client_id and client_secret in the JSON payload.  If I set the connector field for client_secret to be a password type, it shows as null in the debug rather than the expected <MASKED> value.  It doesn't appear to be passed at all, as I get error 500 returned from the token URL. Removing the password type setting for the field is enough for the connector to be able to connect.

[rajeshjanapati]

Hi @Waldy,
Will you please share the screenshot of your configuration?
Actually, we need to pass like
grant_type : client_credentials
client_id : ----
client_secret : ---

Thanks,
J Rajesh Kumar. 

[Waldy]

Which part of the configuration?

This works:

This does not work: