Mythic: Fallen Protectors

As of patch 8.1.5, there appears to be some kind of bug that keeps this encounter from being beaten. It doesn't seem to matter what order I try to kill them in, what speed I try to kill them at, whether I try to allow their adds/mechanics to spawn/occur- I've reset the encounter at least 30 times today and the combination doesn't appear to matter, I just can't get He Softfoot to die without casting [spell=143497].

A quick google search brought up this issue on the blizzard forums:

https://us.forums.blizzard.com/en/wow/t/the-fallen-protectors-siege-of-orgrimmar/178687

I'll try to update when I see that it's fixed.

I killed that boss today. 1st killed Rook Stonetoe and when him casted Bond of the Golden Lotus, need fast nuke (1shot) Sun Tenderheart and He Softfoot TOGETHER! Good luck!

You just need to kill them all at pretty much the same time. Just spam your AOE's when they are grouped up.