Post-process messing with emissive materials

Hi,
In an empty new level, i put a simple sphere with an emissive red material glowing by multiplying color x1000.
UE5.3.2 (can’t upgrade right now)


(sorry can only post 1 image as a new user)

normal result:
with Color {1 , 0.04, 0}
image number 1

weird result(with or without post-process):
with Color {1 , 0, 0}
image number 2
the emissive is ■■■■■■ up with pure Red color … why?
light is emitted but the surface doesn’t glow.
if i make if glow x10000, we get:
image number 3

weirder result:
if i add a simple post process actor to the scene, with default settings
with Color {1 , 0.04, 0}
image number 4
it flickers
with Color {1 , 0.04, 004}
image number 5
it flickers too …

i tried:

  • DX11: the post-process bug is gone, but the emissive with pure color is still there
  • desactivating AA, exposure.
  • updating GFX drivers
  • tinkering ar random with all parameters in the post-process
    nothing works.

what’s happening?
thanks

image links fixed

sorry my fault … how do i delete a post?