This is exactly why you should wait with the supplemental hard feed.Concerned that the honey stores were on the low side, I've been supplementing with winter patties. When I recently checked on if I needed to add more I saw that the bees were clustered on top of the patties which are on top of the frames, with a spacer and then inner cover. I'm wondering if being clustered at the top like that might cause a moisture issue: being so close to top they'll be right where any moisture might rise and accumulate.
Would it be wise to add a shallow, then inner cover and top cover?
See, now you have these unforced issues.
Meanwhile, the bees surely had enough honey for at least 1-2 months (and likely more).
Add more boxes and insulate above the bees - even a piece of plastic and a blanket.
Should be a non-issue.