Page Events Missing in Mixpanel Workspace: Troubleshooting Needed

Our page events have completed disappeared from one of our Mixpanel workspaces, and we can't figure out why. They no longer show up in our Lexicon (even looking at HIdden events), and don't show up in our UI either. We're connecting via Rudderstack, but can confirm that our page events are showing up properly for all Rudderstack sources, and no other destinations hve any issues.