Piglins rapidly raise and lower their arms when killed in Peaceful mode

Update by [Mod] Jarl-Penguin
Summary
Piglins will randomly raise/lower their arms rapidly in Peaceful mode when attacked/when a piglin nearby is killed.

How to reproduce:

1. Go into survival mode
2. Change difficulty to peaceful
3. Hit/kill a piglin (preferably with other piglins nearby)

-> The piglins raise and lower their arms rapidly

Original Description
Im in peaceful and there are hoglins and piglins here. I'm unsure if that's a glitch  itself but the piglins keep raising and lowering their arms as if they are hostile then peaceful then hostile again. Also, when hit, they float down to a lower platform. This could be caused by the lag that I'm also experiencing