I've had it a couple of years and it bloomed quite nicely just over a month ago. The clump is big and healthy looking and the current stalk is normal in appearance. It may be "confused", but I'm pretty sure it's not stressed.
I'll probably contact Rick at some point, but they're in the middle of the their shipping season right now and I didn't want to bother him at the moment. Just wondered if anyone else had experienced this with 'Absolute Treasure'. It happens, 'Magnificent Masterpiece' is not registered as a rebloomer either, but it apparently does so on a regular basis for many people.
Or, it might just be one-off sort of thing that has no explanation and never happens again.