The level set as the Story Above for these levels is no longer a story level. This change will cause these levels to revert to the default Story Above.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)
Syntax
C#
public static FailureDefinitionId StoryAboveNonStoryLevel { get; }