On previous Auth0 incident we found that our machine to machine fallback not working due to a bug in auth library. when the incident happen some of clients unable to authenticate to both auth0 and fallback (some clients not affected because their token is not expired yet).
Because this incident could happen again in the future, please immediately update the auth dependency on your client to this version:
com.traveloka.auth:authentication:4.4.0
All client service that use auth0 machine to machine e.g to consume this services:
FAQs