Add OAuth2.0 - can's save secret and id

I am creating a new collection for Netsuite OAuth. I am configuring the token and I added the Client ID and Client Secret. I double click and choose ‘Encode URI Component’. I then set them as variables.

There is an exclamation point on both of these fields and when hovering over it, the message says: This field contains characters that might need to be percent-encoded depending on the authentication server. You can encode by right-clicking in this field.

When I click Get New Token, i get a generic message “Could not complete OAuth 2.0 login. Check Postman Console for more details.”