Teams freezes up when scrolling with mouse in contact people list

I have raised Microsoft ticket for the issue and got reply like this "We would like to provide an update regarding the issue where Teams Desktop and Teams on the Web may freeze when users access Contacts (People App).

Microsoft has confirmed that this is a known issue and has identified a fix. The fix is currently being deployed through the Teams service update rings.

The fix is expected to reach Worldwide (General Ring) customers by the first week of September."

Hello @Ryan-N , have you find a solution about this issue ?

Same issue here with one of our users. Adding a few data points in case they help narrow this down.

Symptoms

• Teams desktop client freezes once the Contacts list is fully loaded.
• Teams in Edge: Edge itself crashes.
• Teams in Firefox on the same PC: works without any problem.

What we have tried

• Disabled GPU acceleration — no change.
• Cleared the Teams cache — no change.
• Reinstalled Teams — this resolves it, but only until Teams updates itself. After the update the freeze is back.
• Removed the M365 account from Teams and from Windows (Settings > Accounts > Access work or school) — works again until the contact list has fully loaded, then it freezes.

Possible clue

The Edge/Firefox split may be the most useful signal here: the Teams desktop client and Edge both render through Chromium/WebView2, while Firefox uses Gecko. That points to the Chromium rendering path rather than to the account or the service side. The fact that it only triggers once contacts are fully loaded also suggests something in the contact data itself (categories?) is hitting the bug, which lines up with the earlier comment in this thread.

Not that this helps, but I have tried the same steps and having the same issue without any success of resolving.

Hi Troublefield, David SE-AM-FS,

Welcome to the Microsoft Q&A forum.

Thank you for sharing this information.

Based on my test environment, when I navigate to People > Contacts, I am unable to reproduce the same issue.

I can also see that you have already performed numerous troubleshooting steps, but unfortunately the issue has still not been resolved.

In this situation, I recommend creating a support ticket with Microsoft Technical Support so that they can conduct a more in-depth investigation. They have access to the necessary tools and resources to determine whether the issue is related to device configuration, the operating environment, or a recent Teams update.

To contact Microsoft Technical Support, please refer to the following documentation:

Get support - Microsoft 365 admin | Microsoft Learn

If you have any questions or need further assistance, please feel free to share them in the comments on this post so I can continue to support you.

I look forward to continuing the conversation.

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