Copilot button missing & functionality missing in Teams since new version installed last week + Public Preview version today

I also experience the same behaviour in our environment. Suddenly different Users are reporting the missing of copilot pinned in teams. We were not willing to allow it to everyone, just to a specific group of members. So your suggestion to set it to everyone is not an option for us.

I will raise a ticket for microsoft support. I will come back as soon as I have more information.

We have different Teams Versions (Enduser have normal channel, IT have targeted release and Preview enabled).

Hello @Perry, Dean,

Thank you for posting your question in the Microsoft Q&A Forum.   

I completely understand how frustrating this situation is, especially when Copilot has been part of your daily workflow and suddenly disappears after an update. I want to share honestly that I’m in the same position: I’m currently using Teams version 26032 as well, and I’ve also lost the Copilot button compared to the older 26005 version. 

Version 26032:

Version 26005:

Since I’m also just an end user like you, I’m experiencing the exact same limitations, and I can’t confirm from my side whether this disappearance is due to the latest Teams update or a change on the service side. 

Because the issue is affecting multiple people in your organization and persists even after updating to the Public Preview build, the best next step would be to ask your IT admin to open a support ticket directly with Microsoft through Admin Center. The engineering team can check tenant‑specific configurations, policy changes, licensing validation, and whether this behavior is tied to the latest update. They will be able to confirm whether this is an intentional change or an unexpected issue introduced in the new version. 

I’m really sorry that this is causing inconvenience on your side, and I truly appreciate your patience. If you receive any updates from your IT team or from Microsoft Support, feel free to share them, I’m here and happy to help you interpret anything or guide you through next steps. 

Warm regards, 

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The behavior matches a Copilot-availability issue rather than a client bug on the individual device. Copilot in Teams relies on the same underlying Microsoft 365 Copilot licensing, network, and policy controls as the rest of Microsoft 365, so troubleshooting should focus on those areas rather than only the Teams build numbers.

Given that:

• Copilot still works on iOS for the same account.
• The Copilot pane opens but is empty in meetings where the “catch up with Copilot” prompt appears.
• Multiple users in the same tenant are affected after recent updates.

The most likely causes are:

1. A licensing or account conflict at the tenant level.
2. A policy change that blocks Copilot in Teams.
3. A network or privacy setting that prevents Copilot from validating the license or accessing data.

Recommended path for the Microsoft 365 admin:

1. Verify Copilot licenses and propagation
   • Confirm affected users still have a valid Microsoft 365 Copilot license assigned (for example, Microsoft 365 Copilot or Microsoft 365 Copilot Business) and that no device-based or SCA licensing is being used. Copilot requires a user-based license and does not work with device-based licensing or Shared Computer Activation.
   • If licenses were recently changed or reassigned, allow time for propagation. Newly assigned or modified licenses can cause temporary “missing Copilot” behavior until they fully propagate.
2. Check for account conflicts
   • Ensure users are signed into Teams and Microsoft 365 apps only with their work account that holds the Copilot license. Mixed sign-in (work + personal) can cause Copilot license validation issues.
3. Confirm Copilot is not blocked by policy
   • In the Microsoft 365 admin center and Teams admin center, verify that no new policies have been applied that disable Copilot in Teams or block Microsoft 365 Copilot Chat. If Copilot is unpinned or blocked by admin configuration, users may see reduced or no Copilot experience even though the license is valid.
   • For Microsoft 365 Copilot Chat, admins can control whether the Copilot app is pinned or even available. If admins elect not to pin Copilot and indicate that users can’t be asked, Microsoft 365 Copilot Chat will not be available via the Microsoft 365 Copilot app, Outlook, or Teams, though it remains available via the web endpoint unless that URL is blocked.
4. Validate network requirements
   • Ensure the tenant and affected clients meet the Microsoft 365 Copilot network requirements. If required endpoints are blocked (for example, by a corporate proxy or firewall), Copilot may open but fail to load any content, resulting in an empty pane.
5. Check privacy and connected experiences
   • Copilot can be blocked by privacy settings that disable connected experiences or content analysis. For Microsoft 365 apps, Copilot requires:
     • “Experiences that analyze your content” to be turned on.
     • “All connected experiences” to be turned on.
   • If these are disabled by organizational policy, Copilot features can disappear or fail to load content.
6. Use web as a control test
   • Since Teams on the web is also affected, test Microsoft 365 Copilot Chat from the dedicated web endpoint (if not blocked by admin/network) to see whether Copilot works there. If it fails in the same way, that further points to tenant-level licensing, policy, or network configuration rather than a Teams client regression.

If, after confirming all of the above, Copilot is still missing or the pane remains empty, the issue aligns with the general “Copilot is missing, disabled, or doesn’t work correctly” scenario. At that point, the admin should:

• Re-validate that all Microsoft 365 Copilot requirements (license, app version, network, privacy) are met.
• Follow the guidance in “How to find and enable missing Copilot button in Microsoft 365 apps.”
• If the problem persists, open a support ticket with Microsoft, referencing that multiple users in the same tenant lost Copilot in Teams after specific build updates and that Copilot continues to work on iOS, indicating a service or policy-level issue rather than a per-device problem.

References:

• Copilot is missing, disabled, or doesn't work correctly
• How to find and enable missing Copilot button in Microsoft 365 apps
• Frequently asked questions about Copilot in Excel
• Updated Windows and Microsoft 365 Copilot Chat experience
• Microsoft 365 Copilot release notes