Word 2013 ribbon and NVDA 2020.3


I am with NVDA 2020.3, windows 10 2004, french Word 2013 and I have a problem with the ribbon.
NVDA speaks only "pane" when I select a tab of the ribbon (by space key) to expand lower ribbon.
I can no browse the lower ribbon with "Tab".
I have this problem also with NVDA 2020.2 but not with NVDA 2020.1 or 2019.3.
Tests done with copy of NVDA and add-ons disabled.
I would like to know if you also have this problem or if it is a problem with my configuration.
Thanksfor your help.
Best regards.

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