Copilot not working with my main Microsoft account, but works with others

Hello

I have been frequently using Copilot with my main Microsoft account, and it was working fine before.

Recently, Copilot stopped working only with this account. I have tested extensively:

• InPrivate window: Copilot works without signing in but fails when I sign in with my main account.
• Second account: Works fine in the same browser and InPrivate mode.
• New Edge profile: Issue persists only with my main account.
• Different browsers: Same result — main account fails, second account works.
• Different devices (PC and mobile): Same result.
• Different networks (Wi-Fi and mobile data): Same result.

This confirms the problem is account-specific, not related to browser, device, or network.

I have not made any changes to my Microsoft account or Copilot settings in the last few days.

Other accounts continue to work normally under the same conditions.

Could you please escalate this issue and check what might be wrong with my main account?

It seems to be related either to account configuration or Copilot’s backend limits.

Thank you in advance.