Hi! I have a blueprint which has a hierarchy of components : the DefaultSceneRoot, with a child named SplineParent of type SceneComponent, and SplineParent has children Spline1 and Spline2 of type SplineComponent.
In C++, USplineComponent inherits from UPrimitiveComponent, and UPrimitiveComponent has this property
UPROPERTY(EditAnywhere, AdvancedDisplay, BlueprintReadOnly, Category = Rendering) uint8 bRenderInMainPass:1;
However, if I select Spline1 in the Components panel of the blueprint editor, in the Details panel there is no Rendering category, and no RenderInMainPass properties. I expanded the advanced properties.