Could you please go to one app of Office 2016 Home and Business > File > Account, take a screenshot of Product Information which include the version number?
Please note, cover any account email information.
Then I would suggest these users go to Account on the interface above > Manage Settings under Account Privacy, ensuer all the boxes of Connected experiences are ticked.
Besides, please check whether they can download some Office templates from https://templates.office.com.
If yes, users can move templates to templates folder, such as for 64-bit Office 2016 which uses English, the path is C:\Program Files\Microsoft Office\root\Templates\1033
, and %appdata%\Microsoft\Templates\
.
(Please note, "1033 folder" is the LCID folder, you may refer to "Language identifiers" to check the LCID.)
Then check this issue again.
If nothing helps, I suggest you perform a repair Office from Contrl Panel.
Or let the users uninstall Office and reinstall Office for a check.
Any updates, you may post back.
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