OK, looks like it's a bug in Mac Word vba. I don't have any "colleagues responsible for Mac Word" - I don't even work for MS (never have). However, I can file bug reports.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Dear Paul:

I thought 'MS MVP' was an official function related to Microsoft. I owe you all the more thanks for the time and attention you spent on this. Could you do one last thing and tell Microsoft about this? They might take your report more seriously than mine.
Thanks again for your help!
mbk