UE4 - Particle emitter sorting problem

https://realtimevfx.com/t/ue4-particle-emitter-sorting-problem/3118

https://forums.unrealengine.com/development-discussion/rendering/1353145-particle-emitter-sorting-problem

I am using one emitter to create the desired shape to avoid this problem.
This is a bit of a complement, but it increases the difficulty of emitter setup.
and with other emitters added, the sorting problem recurs.

i placed the particles at 45 degrees apart.
There seems to be no big problem with sorting.

included good solution.

angle division & Mask blending only in the center portion