Using Classic Outlook on Windows for personal email, calendar, and contact management
The Outlook issue described is a known product issue that engineering is already working on, and there is currently no additional troubleshooting that can resolve it from the user side. The recommended action is to keep Outlook updated and wait for the fix to be delivered through product updates, as confirmed by Outlook Support in the referenced case.
Because the fault is on the service/product side, further local troubleshooting (such as removing credentials, reinstalling, or repeatedly reconfiguring profiles) will not resolve the problem and only consumes time without benefit. Once the product team ships the fix, the issue should stop occurring without additional action beyond staying current with updates.
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