Low Jiaoceng boss gets stuck on wall, doesn't attack

Description of the bug: (optional screenshot/video):

What is supposed to happen?:
JC stays in maps and attacks.
Where did you find and/or notice this bug?: Jiaoceng boss
A step-by-step guide to re-producing this bug (optional):
Not sure how to reproduce since this is the first time it has ever happened, but JC boss stayed stuck off map moving right without attacking. Didn't have time to @gm since this is a timed boss fight, but it did happen towards the end of the fight within the last two minutes.
Extra information (optional):

 

Just another update:
JC froze again with about 2 mins left.
So I noticed that if a boss is facing in two different directions on two different clients, it will freeze. You can see in the picture below.

Maybe in the picture above, JC wasn't stuck in wall, but it was just frozen while it was getting knocked back/pinned into the wall. If that's the case, it is just a matter of JC freezing (more frequently now than before).

 

Had a pretty strange occurrence today with JC freeze, where it wasn't just the boss this time, but 2 of the minions in addition to the red boss were frozen. The last minion was able to move around freely.

This was weird because as you can see in the two screenshots that one of the minions is completely displaced. My bowmaster was able to hit the displaced minion, while my hero did no damage to it, so I believe mob positioning favored one client over another (in this case, the hero's client positioning of the blue mob).

Very strange.

Run #2 also froze, but it wasn't as eventful or insightful as this one.

 

Actually posting run #2 because I remembered why I screenshotted it:



JC was stuck all the way in the wall this time where you couldn't even see the damage lines, only the flare around the numbers for crits. I almost didn't clear this run because I was playing around to see if I could get JC to unstick. Rushing in both directions, trying to stun with shout, and using panic to try to KB it with high damage didn't work. To add, JC's legs were still moving but the body itself just stayed frozen.

 

Just another update - I think the freeze has something to do with my hero client. We ran into another boss freeze yesterday where I was trio-ing with someone else. I decided to leave party on my Hero so my other party members could soak up the EXP, but as soon as I left the map on Hero, the JC boss unfroze.

It seems like bosses tend to freeze more frequently when Heroes are around.
I noticed this happens when I Dunas as well.