The Bug:

Sometimes, when pathfinding to a flower, bees will fly extremely slowly. Often this leads to them giving up on trying to reach a flower even if its unobstructed

How to reproduce:

I noticed this most often happens when bees are pushed around and interrupted, but I think sometimes it can occur even without this.

1. To quickly reproduce the results, have a lot of bees together in a fairly basic bee farm
2. It's a bit random, but sometimes bees that are bumped around will give up on their flower, flying elsewhere
3. Follow these bees, and observe how for some reason, when pathfinding to new flowers, they will be extremely slow and give up on going to flowers they can reach 

Observed results:

Bees sometimes have quirky behavior when pathfinding to flowers when their paths are interrupted or reset and they "give up" and try again

Expected results:
Although bees do slow down to an extent, it shouldn't be as dramatic as in the gif presented