[ORD 2022 R1] Exported Terrains Don't Match Original

I tried exporting a complex terrain to all of the available export formats (dtm, tin, .xml, fil, and txt).  When I create a new terrain from any of these exported files the triangles don't match the original terrain.  I think the underlying terrain is being reprocessed, thereby losing any terrain edits that may have been done.  I think this happens on any edited terrain, not just complex terrains.

This seems like a defect.  Am I expecting too much?