@Seagee To identify that array I used BeyondCompare to look at the plist
when it wouldn't open and after deleting it and it being regenerated.
The only differences were the already mentioned NSOutlineView Items
MailNavigationPane array and and the Se...
I've pinned it down the "NSOutlineView Items MailNavigationPane" array
in the com.microsoft.Outlook.plist. When you expand a nested folder a
new item is written in this array. These seem to be the cause of the
Main window not being display. Rather th...