Re: 4 week old hive - No change in last week
How much capped brood do you have? The bees may have as much comb as they need for right now and are on to other things. If you have a ton of capped, the comb drawing will start back up again once they emerge, as long as your flow continues. If you don't care about honey this year, you should be feeding them both syrup and pollen patty to keep things rocking and rolling. I do not recall if you have addressed this in another post. It seems a little early for them to have hit a plateau.
Thankfully, the bees are smarter than I am. They are doing well, in spite of my efforts to help them.