Using New Outlook on Windows for personal email, calendar, and contact management
I have also that issue with my Gmail account.
New Outlook version : 1.2025.205.100 (Production)
Client Version : 20250206076.06
Webview: 133.0.3065.59
Thursday February 14
I follow instruction from post of "James Lawrence3" ...
Just deleted the account ON ALL DEVICES and re-added the account. It worked!