The highlighted risers have the same location along the boundary line. Please move one of the two risers.

public static FailureDefinitionId RisersAtSameLocation { get; }

Public Shared ReadOnly Property RisersAtSameLocation As FailureDefinitionId
	Get

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