Unreal Post Process - Desaturating emissive vfx

Hello, I was trying to desaturate the scene using a post process material, but I encountered an issue, I can’t find a way make it affect effects which are using emissive materials. Is that possible to do it through a post process, or is it something I need to change in the emissive material of the effect itself?
UnrealEditor_crkHq7RrwQ

It’s probably because your effect has a translucent material that renders into a separate translucency pass. You might be able to prevent it by rendering into the main pass. Maybe also velocity & depth required, but not 100% sure.
Settings here in the material:
image

Also, don’t forget that there is post process settings as well, as to when the post process draws.
So you could alternatively change the post process order. E.g. to Before Translucency:
image

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That actually worked, thank you!

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