Organizing and accessing contact information in Outlook.com
Do your symptoms match the problem described in this post?
Answer by "Hornblower409 May 9, 2026" in
https://learn.microsoft.com/en-us/answers/questions/5885577/microsoft-has-been-roaming-around-in-my-win-11-pc
If so, it's a known bug. I and other users have been seeing this problem on-and-off over the last few weeks.