Any dough can dry up as you work. A good tip is to cover the dough you are not using at the time with a damp cloth. A dry cloth can work too, but a slightly damp one is better. Note: be careful the dough doesn't touch the cloth or it will stick and is hard to get off (yes, speaking from experience there). Toothpicks or putting the dough in a bowl or lace with a slightly raised edge can help keep the cloth separated from the dough. Good luck!