J; How long have you been keeping bees? I'm still a rookie, however, I'm only wet behind one ear now. One mistake could be expanding too fast. On March 1st of this year I had one hive with swarm cells and no queen, eggs, brood, or larva. I bought four packages, done splits, caught swarms, did about 3 cut outs and now I'm up to 17. Until the last week or so I was concerned about 3 or 4 of them but their numbers seem to be building up.
My bee season is much longer than yours - I suppose. I wish the best to you. If you run into any trouble or have any questions give us a holler. There's a lot of good folks on here that has the answer or can steer you in the right direction.