The Actor Transform Widget/Gizmo does not follow any actors that are moved during Simulate when the actors are selected. If the selection is changed or if the actor is clicked again, the Widget/Gizmo will update as expected.
Result: The Transform Widget/Gizmo does not update its position to follow the actor that is currently selected
Expected: The Transform Widget/Gizmo would follow the selected actor
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-75435 in the post.