Baja it happened to a couple of my thick leaf echeverias too. I hope they recover.
Steve, that is pretty! I don't know how big it is, but ever since I listened to Baja about propagating by leaves or cuttings I now have more backups. Surprisingly the leaf cuttings propagate faster just being placing on top of any pots that require daily watering. I place them on top of mulch of my potted roses. Once baby pups start showing then I repot and keep moist. The base also produce pups faster that way.