When creating an opening, you cannot sketch loops within other loops. The highlighted loop(s) are contained within another loop.

public static FailureDefinitionId ContainedInOtherLoops { get; }

Public Shared ReadOnly Property ContainedInOtherLoops As FailureDefinitionId
	Get

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