Self-made fatty dough separates in refrigerator, how to prevent
I have had this problem before too, and the only solution I have encountered is to freeze the dough you want to store, this requires a bit more planning as you will want the dough to thaw completely before you use it. The best way I have found to thaw the dough is covered on the counter or placed somewhere it can rest without being touched or moved much. I hope this helps and you solve your problem:-)