Rob Pieké

Do you have an Object-level transform on one but not the other? SOP Import only imports the SOP, not the Object.

If you're still having issues, can you send us a hip file?

If you haven't already, can you please log a bug? I recall this has similarly been observed internally and the determination was "that should never happen", but it'd be helpful to ensure we can track this formally.

Unfortunately at this time we don't have any fine-grained dependency tracking. When you say "tweak parameters having no effect on displacement", do you mean on the same node or on a different node?