Error "Could not find resource for full path"

[alexanderwilms]

Testing in RU: we are in Step 4 of the Auth Flow (https://github.com/Digitaler-Impfnachweis/certification-apis/blob/master/SMCB-Authentication.md) - we have successfully fetched the x-auth-challenge and signed it using an RU Konnektor with one of the provided Test SMC-B cards using the ExternalAuthenticate function. We send the signed auth challenge and AUT certificate using the request described in step 4. We receive an error message
Could not find resource for full path: https://id.ru.impfnachweis.info/auth/realms/bmg-ti-certify/login-actions/connector:/authenticated?session_state=7c07be81-1831-4500-86f3-54e8a303881a&code=420342d5-0d70-498b-b555-a0e8b1ba0fc9.7c07be81-1831-4500-86f3-54e8a303881a.29638cf4-d546-49e0-9945-29bc0a4e3ed6