Recently, after our Crowd upgrade, there are several users who cannot login to Confluence data center with the following error:
2020-09-08 14:18:03,019 ERROR [http-nio-8090-exec-11] [impl.web.filter.ErrorHandlingFilter] doFilter Received SAML assertion for user (username), but the user doesn't exist in the product
com.atlassian.plugins.authentication.impl.web.usercontext.AuthenticationFailedException: Received SAML assertion for user (username), but the user doesn't exist in the product
The user exists in Confluence, and can be found via the API. The user exists in Crowd and can be found in the delegated authentication directory. The user also exists in the IdP.
Any ideas how to resolve this?