Today the chick's big gunky strand that was dangling seems to be pretty much gone/dried and/or shriveled up. Chick is walking around completely fine and peeping off and on. He/she does have a yellowish substance on its back that looks like it may have been some of the yolk. There is another chick pipping in the incubator now so I can not open the incubator again. Do I just leave the compromised chick be? It's hard to get a clear picture.