End gateway switching to crawling animation results in death!

I didnt find anything duplicating this one, just as a Sidenote: NOT DUPLICATING MC-138069

How to reproduce is unknown either, its totally inconsistent.

 

Proof: (Not recommended for children, If needed please change security level to prevent minors from watching).

https://clips.twitch.tv/BloodyDepressedDaikonNinjaGrumpy