@: In the UE 4.17 version, where do you specify impacts for the new Physical Material types or even modify current Physical Material types to use different impact effects. Been searching through the code now and haven’t found it yet.
Edit: Never mind, finally figured it out, use the “Surface Map” variable in the “BP_DefaultImpactEffect” blueprint and set up your particle effects linked to your Physical Surfaces defined in the project settings. 