Interesting Horizon flight from KSEA

Not sure what was going on here:

flightaware.com/live/flight/QXE1 … /KSEA/CYYC

Anyone have any information (or is it just a tracking glitch)?

Note the time gap in the tracklog… looks like they took off, landed, and took off again about half an hour later.

Indeed they did:

Departure Scheduled Actual Gate Arrival Scheduled Actual Comments Alerts
Seattle, WA 9:10 AM 9:08 AM C2E Seattle, WA 9:45 AM 9:56 AM Not Operating as Scheduled N/A
Seattle, WA 9:10 AM 10:30 AM C16A Calgary 12:50 PM 1:18 PM Not Operating as Scheduled N/A