Bees will not fly around stalagmites. Bees colliding with stalagmites will continuously try to fly through them. Once they are stuck, their flying animation stops. Observed in a vanilla minecraft realm.
What I expected to happen was...:
Bees not to get stuck on blocks.

What actually happened was...:
Bees collide with stalagmites and will not move around them. Their flying animation stops when stuck.

Steps to Reproduce:
1. place 2 block tall stalagmites in areas where bees roam and might collide with them.