_Box -> _ToSubD conversion issue on creasing

Hi All,
Just noticed this today. When extruding a Box, I clicked on _ToSubD and found that not all edges remained creased. one edge in particular was uncreased. I tried changing the import choices but still had the same results.
While choosing the import:

After Choosing:

And the parts pulled apart to make it easier to see.
extrude box to subd-chosen-pulled apart

extrudeBox-SubD-Error.3dm (77.2 KB)

Same here. One edge remains uncreased.

Thanks, filed as https://mcneel.myjetbrains.com/youtrack/issue/RH-58161