First time home hobbyist poster with two hives. Yesterdays quick inspection revealed one thriving colony and one failed. The failed colony has two med supers. Top box had about 5 full frames of capped honey. Bottom box had drawn comb and absolutely nothing else visible, like it had been licked clean. No dead bees outside the hive, maybe a hundred dead bees on the bottom screen with no obvious signs of a problem.
Any ideas as to why the bees failed and didn't go to the top box for honey?
Other notes: Last fall fed pollen patty and tried to feed syrup with hive top feeder. Neither of my hives touched the syrup. The healthy hive seemed more vigorous last fall but both hives had brood and stores for winter.
Any ideas as to why a colony wouldn't touch fresh 2/1 syrup in early Oct.?