FBX Export with Origin, Unexpected Origin Position

I’ve been making good use of the Rhino FBX exporter lately!

Unfortunately, when I export with a custom origin and Z-Axis remapping, the exported FBX origin tends to end up in an unexpected place. In the above picture, I exported with the highlighted point, and imported the file afterwards. Appears in a similar place in other programs. I would anticipate the mesh to appear at the highlighted position drawn. Is this a bug?