That sounds quite annoying. Couldn’t a addon be created that would jump focus to the correct place when control-Y is pressed? Though from the response form the original poster there is someplace else where NVDA and Outlook are agreeing to disagree in one of the panels.
Also, any regular user of NVDA using an insider build of Outlook who could comment on if this is still occurring in the latest builds?
From: <firstname.lastname@example.org> on behalf of Pranav Lal <pranav.lal@...>
How are you changing folders in Outlook 2016? There is a known bug where if you use ctrl+y and the resulting tree view to switch folders, outlook crashes. You need to use the folder pane accessed by ctrl+shift+tab.