Copilot - Keep it not working

The behavior described matches known, product-side issues with Outlook and Copilot that are being actively worked on by Microsoft engineering. In similar cases, support has confirmed there is no reliable client-side fix and no ETA, and the guidance is to keep Outlook updated while the fix rolls out.

Given that this is business-critical and affects the New Outlook with Copilot (Keep deleting the entire message, copy/paste not working), the only actionable steps supported by the available information are:

1. Ensure Outlook stays fully updated so that when the product fix is released it is applied automatically.
2. If possible, temporarily switch to classic/old Outlook or Outlook on the web for critical work until the issue is resolved, since those experiences are not mentioned as affected in the provided material.
3. If a support case is already open and stalled, request escalation through Microsoft support so the case is associated with the known issue and tracked against the engineering fix, as was done in the referenced cases.

There is no supported guidance in the context to resolve this locally (for example, by changing settings or removing credentials); the resolution depends on Microsoft’s product update.

References:

• Outlook_appchat
• fixing the ADDriver error in Outlook - Microsoft Q&A
• Unable to log into m365.cloud.microsoft, something went wrong - Microsoft Q&A