The sole surviver.

Way back here,  more or less, I had 3 acquired Schlumbergia "leaves". It seems the bottom of one was too far damaged for roots to develop: the top of another - too far gone to sprout.
This one however hasn't done too bad in about 6 months.
Better yet, it may be a different variety, since #1 has a reddish tinge to new growth & # obviously has not.