So sad!
Honestly, I no longer breed any does for December or January kindling, whether they're experienced or not. Sometimes litters come off without a hitch, but after about 10 years I was looking at my records and found that about 80% of all the litters I lost or had trouble with were born in those two months. Many times there seemed to be absolutely no reason for it - like yours, they'll just all be at the front of the box uncovered, even when the doe has previously made a nest bowl in the back. Other times a doe, even an experienced one, will not have them in the box, and I come out to find bunnysicles all over the wire.
It's just so disheartening that I quit taking the chance.
My suspicion is that during those months the does' hormones are at an annual low, and even if you can get them to breed by supplemental lighting, they don't necessarily have all the chemical pistons firing to guide them through nesting, kindling and raising kits. By mid-January, though, we're gaining 4-5 minutes of light a day up here, and even though they're in a barn, the rabbits respond to that and get very anxious to breed (your daily sunlight gain in N.C. will be less than that, so your mileage may vary). Most of my does are raring to go by the second week of January, and according to my records, February litters are some of the most successful of the year for me, in spite of the fact that our temperatures in February and March can be fairly brutal. We usually have below-zero periods in both of those months, but if the doe does her job of nest-building and fur-pulling, the kits do just fine. That includes litters of first-time does, who do just as well - their hormones are usually over the top!
I just got my first-of-the-year breedings done, and the bucks couldn't perform fast enough for a couple of the does, who tried to take matters into their own hands!
Yay spring! (OK, not yet, but it's coming!)