SiteMinder is the AuthProvider.
OIDC Client setting has refresh_token expiry set to 30 days.
In a mobile_app use case, user would launch the app and login to obtain the access_token and refresh_token.
Although the user is active (launching the mobile app frequently during the 30 days period) the refresh_token expired at the end of 30 days and the user session was rejected.
Release : 12.8.6