Missing flight info WS760 December 19 2022

A flight, WestJet WS760 on December 19, 2022, is missing from the FlightAware.com archive. Going back 3 months, this flight is listed every day except December 19, 2022. on that date, it was delayed multiple times, for 9 hours, and ultimately cancelled, citing crew unavailability, NOT weather. Therefore, it falls under APPR compensation regulations. It’s rather suspicious that this one, single flight has magically “disappeared” from the archive. Does anyone know anything?