I came across an org where the system admin users are receiving insufficient privileges error while trying to access case records. I don't understand why admin users are getting this error as 'View All Data' and 'Modify All Data' are checked by default at profile level. In the list view, I'm able to see the case owners. So, I logged in as a case owner and tried to access the cases owned by the user. Still receiving the same insufficient privileges error. Any thoughts on what I should be looking at to fix this?