The file writing plug-in failed (.3mf)

MacOS Monterey 12.2.1
Rhino Version 7 (7.16.22067.13002, 2022-03-08)

Plug-in shows as loaded and enabled, no other information available.

It does appear to create a file.

I’m able to create a 3MF file from Rhino 7 for Mac - I just tested a box - that loads just fine into, say: https://3dviewer.net/

Here’s the file I exported from Rhino 7 for Mac (7.36.23346.16352)…
Test3MF.3mf (1.2 KB)

If you could share the 3dm file that is not getting created with us, please send it along.