I am experiencing the same thing this year. My hives did not get the comb drawn all the way out in there second supper.
So with four hives, three didn't produce enough for them selfs. The fourth made three deep full of honey. I pulled the first
supper early, but I left the other two to take this fall. Well when my two hives, in my out yard, looked like they would need feed I just put the two suppers, one on each, and have made two candy boards for the two hives here at the house. But with this warm weather and now the rain keeping them in, I don't believe that will be enough. But we will see.
So I do know what you are going through. I hope they pull through for you. Good Luck!