It’s not showing the glow on the last 2 curve based effects. The custom expression is calling a variable that no longer seems to work in 5.2
So I’m guessing you need to rewrite the position expression for 5.2
Looking through the engine documentation & source code the closest translation I could get is
return (float3(LWCHackToFloat(ResolveView().WorldCameraOrigin)) + float3(LWCHackToFloat(PrimaryView.WorldCameraOrigin))) * 0.5f;
Though I’m not sure if GetInstancedView() was swapped out for ResolveView() don’t have a vr headset to check
After shader recompile with my revised expression code the curve glow works
No more shader errors in the mat editor either.