Hello, we’ve just started seeing 401’s on our API tests that login and call /userinfo.
These run on every code commit, there has been no change to the credentials, configuration or tests themselves and so it seems there is a critical error with the endpoint.
I just did a test and could not reproduce any problem calling the /userinfo endpoint on one of my tenants.
A 401 response most likely indicates a problem with the access token. For example, this could be due to the access token having expired or a JWT-formatted token being used without the /userinfo endpoint included as an audience.