Bees cannot boost crop growth if there is no bee hive or nest nearby

Is there a hive or nest nearby?

Just tried it and it works. Let this issue become resolved as invalid. Although it doesn't make much sense that a hive needs to be nearby if it's still dripping the pollen over the crops.

There is nothing in the code constricting crop growth to bees that are near their nest / hive. Is it possible this bee had used up its max number of crops grown (10)?

No, I had just spawned it in.