Can't edit the element until '[Partition Name]' resaves the element to central and relinquishes it and you Reload Latest.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.2.0.0 (26.2.0.0)
Syntax
C#
public static FailureDefinitionId OwnedByOther { get; }