Why can't I see all case records on the Case List page?

Either access groups aren't configured properly for the user or there's an issue with your elastic configuration.

To verify access groups are configured or assigned properly for the user, see How can I see the access groups that are associated with a user?

To check for an issue with your Elastic configuration, navigate to: Setup and Maintenance > Configure Adaptive Search > Setup > Action > Partial Publish (this can take a few minutes to complete).