I am building a spring-boot application which uses google/facebook oauth2 authentication. The application configurations set are as follows:

#Google
spring.security.oauth2.client.registration.google.clientId=<googleClientId>
spring.security.oauth2.client.registration.google.clientSecret=<googleClientSecret>
spring.security.oauth2.client.registration.google.redirectUri={baseUrl}/oauth2/callback/{registrationId}
spring.security.oauth2.client.registration.google.scope=email,profile

#Facebook
spring.security.oauth2.client.registration.facebook.clientId=<fbClientId>
spring.security.oauth2.client.registration.facebook.clientSecret=<fbClientSecret>
spring.security.oauth2.client.registration.facebook.redirectUri={baseUrl}/oauth2/callback/{registrationId}
spring.security.oauth2.client.registration.facebook.scope=email,public_profile

spring.security.oauth2.client.provider.facebook.authorizationUri=https://www.facebook.com/v13.0/dialog/oauth
spring.security.oauth2.client.provider.facebook.tokenUri=https://graph.facebook.com/v13.0/oauth/access_token
spring.security.oauth2.client.provider.facebook.userInfoUri=https://graph.facebook.com/v13.0/me?fields=id,first_name,middle_name,last_name,name,email,verified,is_verified,picture.width(250).height(250)

For google, this is working well - the application has an authorization rest controller which redirects to the google auth end point. After logging in, I can see a code is returned and sent to a redirect URI {baseUrl}/ouath2/callback/google, which is exchanged for a token which is in turn parsed and used to construct a universal application-level Oauth2 bearer token (for use in my shared APIs etc).

For facebook, I am attempting a similar setup. The initial redirect works, and user is directed to a facebook login page with equivalent client_id / redirect uri parameters set:

https://www.facebook.com/v3.0/dialog/oauth
    ?response_type=code
    &client_id=<fbClientId>
    &scope=email+public_profile
    &state=<state>
    &redirect_uri=https%3A%2F%2F192.168.50.150.nip.io%3A8300%2Foauth2%2Fcallback%2Ffacebook
    &ret=login
    &fbapp_pres=0
    &logger_id=e1036c5a-ac6e-448c-ab8g-655727eae993
    &tp=unspecified
    &cbt=1643459835928
    &ext=1645463198
    &hash=AeJog6HeUz9jlsDRQQo

However, when the code is obtained after login and sent to the redirect uri {baseUrl}/ouath2/callback/facebook, there is an error returned when my application attempts to access the FB User Info resource server:

I don't have any traffic capture from my backend to the FB User Info URI, so I can't see exactly what's being sent, but the response I get back is a server error:

[invalid_user_info_response] An error occurred while attempting to retrieve the UserInfo Resource: Error details: [UserInfo Uri: https://graph.facebook.com/v3.0/me?fields=id,first_name,middle_name,last_name,name,email,verified,is_verified,picture.width(250).height(250), Error Code: server_error]

Are there any known issues with the graph.facebook.com end points?