Unreal Engine Issues and Bug Tracker (UE-39857)

Description

UParticleModuleRequired::PostEditChangeProperty use "AlphaThreshold > 0". So, if AlphaThreshold = 0, particlecutout don't work.

Steps to Reproduce

import circle.png
make material using circle.png's opacity
make material using the material
Interpolation Method = Linear. Sub Image Horizontal = 2, Sub Images Vertical = 2 in Required
Alpha Threshold = 0 or 0.1 in Particle Cutout
Put the effect on level and check whether cutout work or not in wire frame.

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Fixed

ParticleCutout don't work when AlphaThreshold is 0