Steps to Reproduce: Navigate to https://www.nexlog.gg/decks Create Deck Click Flexslot Import tab at the top of the modal Click the blue Connect to Flexslot button Expected Behavior: Account links Actual Behavior: The following error is returned: "Cannot authorize this application The redirect_uri does not match any URI registered for this OAuth2 client (loopback redirects match any port; all other URIs must match exactly). FLEXSLOT_OAUTH2_INVALID_REDIRECT_URI".