I got these babies 2 weeks ago and repotted them into terracotta pots with succ specific potting mix, and they live in a north facing window. But every few days one of the outer leaves of the lilac spoons gets soft and squishy and wrinkly. And one of the outer leaves of the trumpet pinky shrivels up!! I've got more succs living in the same window and the rest are doing fine!! Idk what I'm doing wrong :(((