This error happens right after the user logs in to the IdP Auth0 with

"Oops, there was an error logging you in." with no errors in the server logs.

There are not many details in the SAML requests and the Auth0 logs show that the auth was successful. The login is redirected to the following URL:

https://id.atlassian.com/login/callback?continue=https://HOST.atlassian.net/login?redirectCount=1&error=access_denied&error_description=Cannot use 'in' operator to search for 'requiresPasswordChange' in [object Object]&state=XXXXXX