When sculpting landscape then undoing/redoing, a warning appears. This also appears when undoing/redoing movement to the landscape gizmo.
PIE:Warning: Warning AttachTo: '/Temp/Untitled_1.Untitled_1:PersistentLevel.LandscapeGizmoActiveActor_2.GizmoRendererComponent0' is not static , cannot attach '/Temp/Untitled_1.Untitled_1:PersistentLevel.LandscapeGizmoActiveActor_2.RootComponent0' which is static to it. Aborting.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-34443 in the post.