Bug: Weird flickering interaction between Volumetric, Additive Echo and Additive Dynamic

[DangerNoodle9000]

While creating some engine FX Ive run into this annoying visual glitch.
Anytime I put either a Volumetric, Volumetric Cones or Additive Echo inside of a basic Additive Dynamic object (I want to create mach diamonds in a plume and dont add 10 different objects), the Volumetric or Echo objects flicker and change brightness while panning the camera around. It looks like the game cant decide if the cones are infront or inside the plume or something.

Ive attached a short video to demonstrate what I mean:

2023-03-01.17-52-56.m4.mp4

(MachDiamonds is a Volumetic Cones object,
MachDiamonds2 is aAdditive Echo one and
MachDiamonds3 is a single mach diamond as a basic Additive Dynamic object)

Edit: Plume and EdgePlume are both Additive Dynamic objects, with some fresnel and invert fresnel, respectively