Blue Elf tends to be a weaker plant for me. I think it came back. If it did, then it is still two tiny heads, whereas the other Hylotelephium (I know, Blue Elf is an intergeneric with Orostachys, but I compare it to similar Hylotelephium because it has a similar application in the garden) are much larger. I will keep watching it to see if it speeds up soon. I hope it lives!