Font issue with MS Office 16.77.1 (365)

I use Bauhaus93 for my company logo in MS Word header & MS Excel text boxes (invoices/ statement of works/ timesheet/ etc).

I noticed that when I created recent invoices at the end of Sept, the font was not displaying correctly.

Weirdly the font displays correctly in MS Excel cells but not the text box.

I've had a read of some existing posts, understand that it's part of the Office install and not a native Mac font and have tried the following:

1)cleared font cache using "sudo atsutil databases -remove" & rebooted

2)removed MS Word/ MS Powerpoint app and re-installed - no change. I didn't do the full uninstall of clearing Library etc (yet)

3)started in safe mode - same issue

4)tried downloading a new font package and importing into FontBooks but made no difference so removed it. Minor validation issue with kern table structure

5)expanded the MS Word app package contents : \contents\resources\dfonts - font is there and can be opened in FontBook. Minor validation issue with kern table structure

6)copied that font out of DFonts into \Library\Fonts and Users\[user]\Library\Fonts

None of which seemed to made any difference and I'm not sure what to do next other than the complete uninstall of Office.

Anyone got any ideas?