Objects that are dependent on other objects, such as sweeps or lofts from history linked curves, don’t update with internal previews from commands. So for example, rebuilding the curves below that create this loft. If you preview, you see the updated points pertaining the command, but the dependent stuff isn’t previewed.
Is this something that would be achieved with by developing a display conduit?
Just a thought, if it could be something people would want to see.