Yes, I have had mine start to 'prune up' during the drying process in the fall especially after I have washed and divided them. And yet you are supposed to let them dry for a day or three before storing. I think perhaps the problem was digging too soon. They hadn't formed a tough skin and were green. Still, I managed to save quite a few. More than I needed or had time or energy to store much less plant in the spring. I won't be looking at the bags (I now store as Arlene does although I cannot achieve the nice 40F she has) until maybe Feb. Nothing I can do anyway except perhaps spritz any that look in danger of getting too dry. I have tried to save those starting to rot by cutting off the bad parts but my success rate has been less than great.