I am using a Surface Pro and a day ago I discovered that no files in my Sent Items and Trash folders show with dates later than 15/8/23. The Inbox is working normally. It happenned suddenly two days ago and yesterday, when I opened Outlook in safe mode, they were all showing. Today, I cannot open Outlook in safe mode, it just opens normally and I have to use webmail to find my latest sent items. If anyone has any suggestions, they will be gratefully received.