When bees do not get pollen from nature, they stop larva feeding. In the shoert of protein bees eate larvae first.
You may often see eggs but no larvae.
First thing is of course, does hive have laying worker. It is has, they have lack of proteing.
In Britain they have had a half year cold and rain. Many hives stopped brood rearing.
I have brood too much. Some hives has them in 4 boxes. Too profilic. Where is capped honey then? We have had chilly summer. As a honey year this is below average.