A group or groups that was loaded was renamed because its name was not unique amongst the groups in the file being loaded.
Most likely a model subgroup had the same name as the loaded file.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)
Syntax
C#
public static FailureDefinitionId GroupAmongstLoadedRenamed { get; }