Has anyone else seen this bug or reported it?
I ran a Participant Search with the search criteria set to the event name and event type (exhibition). The search returned 22 bookings. But if I reorder the list by clicking on any of the column headers the results change to include bookings from our differently named conference (different event name and type).
I'm using Drupal 7 and Civi 5.13.4. I have replicated the bug on https://dmaster.demo.civicrm.org