Editor crash when im trying to update dynamic material

Development Asset Creation
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1

Editor crash when im trying to update dynamic material in bp instance or compile blueprint. Crash reporter show me problem in function update:

void APlanet::UpdateAtmo()
{

AtmoDynamicMat->SetVectorParameterValue("beta_ray", AtmosphereColor);
AtmoDynamicMat->SetVectorParameterValue("beta_mie", SunColor);
AtmoDynamicMat->SetVectorParameterValue("beta_underground", UndergroundColor);
AtmoDynamicMat->SetScalarParameterValue("atmo_radius", AtmoRadius);
AtmoDynamicMat->SetScalarParameterValue("height_mie", HeightMie);
AtmoDynamicMat->SetScalarParameterValue("height_ray", HeightRay);
AtmoDynamicMat->SetScalarParameterValue("intensity", Intensity);
AtmoDynamicMat->SetScalarParameterValue("planet_radius", PlanetRadius);
AtmoDynamicMat->SetScalarParameterValue("steps_i", CollabA);
AtmoDynamicMat->SetScalarParameterValue("steps_j", CollabB);
AtmoDynamicMat->SetScalarParameterValue("underground_lerp", UndergorundLerp);

}

this function updates in construction script

plz help!

2

are you sure AtmoDynamicMat is not Null ?

3

This article has suggested many new ideas for me. Hope you can continue to contribute your talents in this field. Thank you for sharing this great article.
vex 3