Endermen Bug

(I am sorry that I cannot provide photos/videos)

I decided to see endermen vs the Wither boss so I decided to do it. In the process though it became day and the endermen were agitated at the Wither and didn't seek shelter as they should

To Reproduce

Summon or build a wither boss

Summon or spawn many endermen

Wait for the endermen to become agitated at the wither

Set the world to day

What Should Happen: The endermen seek shelter whilst trying to run at the wither but teleport back to shelter again (or agitation stops and they seek shelter)

What Occurs: The endermen stay agitated at the wither boss and still try to fight it.