Truss references (chains of one or more reference lines) cannot overlap themselves in the vertical direction.

public static FailureDefinitionId TrussOverlappingReference { get; }

Public Shared ReadOnly Property TrussOverlappingReference As FailureDefinitionId
	Get

public:
static property FailureDefinitionId^ TrussOverlappingReference {
	FailureDefinitionId^ get ();
}