A couple months ago I switched to flying primarily on Southwest. I've had Global Entry for a few years and have almost always gotten TSAPre (can't actually remember when I haven't). However, since switching to SWA, I'm only getting TSAPre about 50% of the time. I've flown on other airlines during this time and gotten TSAPre. I checked my SWA profile and it has the correct Trusted Traveler number. Okay, MPers, any ideas?