I noticed that all of the Color modules in Cascade now use RGB values that are limited (clamped) between the 0-1 range. Although the RGB part makes sense, the clamp is a huge problem because it prevents you being able to add glow/emissive-ness to your particles within cascade, unless you are prepared to use a dynamic parameter, or set the brightness in the material instance.
This is very unintuitive because not only do you need a lot more instances of your material, but you can’t set the brightness per-particle anymore to be random without a lot of workarounds.
I’d like to request that the old system be re-introduced as soon as possible, even as part of a hotfix, as I’m surprised nobody has picked up on it yet.
AnswerHub Post here: Can't add glow to particles through Colour Modules anymore? - UE4 AnswerHub