The Grouped element has changed length enough to make it substantially different from other Group instances.
To make this degree of change Edit Group and make the change again.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.2.0.0 (26.2.0.0)
Syntax
C#
public static FailureDefinitionId ElementChangedMoreThanAllowed { get; }