Check-in, check-out or other actions fail with "The object with the following key was deleted or inaccessible: "wt.epm.EPMDocument:12345" in Windchill PDMLink

• Checking in or checking out a part failed with error below reported in Event Management
• Failed to add an assembly to Workspace or save as an assembly with error:
  

  The object with the following key was deleted or inaccessible: "wt.epm.EPMDocument:12345"

  • Where 12345 will be a unique database ID number for the CAD Document

• Revise of a drawing fails with error:

The object with the following key was deleted or inaccessible: "wt.part.WTPart:12345678"

• Cannot check out or remove objects from workspace with the following conflicts reported in Event Management

  The object with the following key was deleted or inaccessible: "wt.epm.EPMDocument:#####"
  
  Complete family table information is not accessible for some documents in active workspace. List of documents:xxx.prt
  No server operation is allowed until this conflict is resolved.
  Remove all the members of the family from the active server workspace or contact your administrator.
  
  Workspace Refresh Failed in Action 'K03_UWGM_ACTION_NAME_REMOVE'.
  

• The Methodserver reports an exception like the following

wt.fc.collections.CollectionContainsDeletedException:
The object with the following key was deleted or inaccessible: "wt.epm.EPMDocument:####"
at wt.fc.collections.RefreshHelper$Refresh.processDeletes(RefreshHelper.java:751)
at wt.fc.collections.RefreshHelper$Refresh.refresh(RefreshHelper.java:438)
at wt.fc.collections.RefreshHelper.refresh(RefreshHelper.java:101)
at wt.fc.collections.StandardCollectionsManager.refresh(StandardCollectionsManager.java:148)
at wt.fc.collections.StandardCollectionsManager.restore(StandardCollectionsManager.java:221)
at wt.vc.struct.StructCopyLinkEntryHelper.buildInflatedLinks(StructCopyLinkEntryHelper.java:745)
at wt.vc.struct.StructCopyLinkEntryHelper.queryCopyLinksForNewIteration(StructCopyLinkEntryHelper.java:768)
at wt.vc.struct.StructCopyLinkEntryHelper.copyLinksForNewIterations(StructCopyLinkEntryHelper.java:860)
at wt.vc.struct.StandardStructService.copyLinksForNewIterations(StandardStructService.java:2903)
at wt.vc.struct.StandardStructService$5.notifyVetoableMultiObjectEvent(StandardStructService.java:604)
at wt.events.StandardKeyedEventBranch.intDispatchEvent(StandardKeyedEventBranch.java:441)

• Add to workspace an assembly failed for specific users in embedded browser with conflicts below but the objects are visible when accessing same workspace in standalone browser 

  The object with the following key was deleted or inaccessible: "wt.epm.EPMDocument:###"
  Complete family table information is not accessible for some documents in active workspace. List of documents:<list of *.prt>
  No server operation is allowed until this conflict is resolved.
  Remove all the members of the family from the active server workspace or contact your administrator.