So had this twice now, not a one off. Tubeless rear coming off with quite a loud bang, when landing a small drop onto flat. I mean a foot one time, less the second. Was considering wrapping more tape round the rim as the tyre is a little bit slack? Could it be pressure? Was a bit soft if anything last night, bit first time wasn't. Rims are flows, tyres- not tubeless cross mark and more recently advantage, not the rider with the most flare, but i didn't land them particularly badly/heavily/awkwardly, and in fact have dropped much much bigger stuff, though that's typically into a down ramp.
Any way more tape? different pressure? just give up and get a proper tubeless tyre?
I await the valuable expereinces, observations and criticisms of the hive mind.