None of the created elements are visible in [View Type] View. You may want to check the active view, its Parameters, and Visibility settings.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.2.0.0 (26.2.0.0)
Syntax
C#
public static FailureDefinitionId AllInvisibleInViewWarn { get; }