Hi souls,
I was able to get your particle system material working just fine. You had “Crack Free Displacement” checked which isn’t intended for particle systems. This is generally used for landscapes so uncheck it like in screenshot.
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After doing that your material was able to compile and display. Also note that the mesh you are using for the particle system should already have the material applied to it by default in the static mesh editor.
Good Luck with your project!