They should have rotted
I had some plumie cuttings that had been in the greenhouse for a while on a high shelf so they were nice and warm and protected from moisture. Several hadn't begun to root after 2 months but were still firm. I was moving some plants around and had put the cuttings outside. I went on vacation and had completely forgotten that I'd moved them outside. They'd been outside for about a month when I remembered and had been rained on and watered often along with all my other plants. They were unrecognizable, full of foliage with nice root systems. Maybe the unusually high temps we've had this summer helped but most times my unrooted cuttings have rotted when they remained moist.