Microsoft Teams Freezes When Scrolling Contacts: Known Issue and Fix [2026]

If Microsoft Teams freezes when you scroll through your contacts or the People list, you may be dealing with a known issue rather than a problem with your mouse or Windows installation. Users have reported that Teams becomes completely unresponsive when they scroll through the Contacts list, forcing them to close and restart the application. The issue has also been reported in Teams on the web, though the exact behavior may vary across browsers.

Why does Microsoft Teams freeze when scrolling Contacts?

The issue appears to be related to the People/Contacts experience in Teams. Several reports indicate that the problem started after Teams build 26198.304.4946.9672, particularly for users whose contacts have categories applied. One interesting observation is that Teams and Microsoft Edge can freeze while Firefox works normally on the same PC. Since Teams and Edge use Chromium/WebView2 while Firefox uses a different rendering engine, this may point towards a rendering-related problem. However, this is an observation and not a confirmed root cause from Microsoft.

Users have already tried common troubleshooting steps such as

• clearing the Teams cache,
• disabling GPU acceleration, restarting the computer,
• reinstalling Teams.

In some cases, reinstalling Teams temporarily fixes the problem, but the freeze returns after Teams updates itself. One user also confirmed that the issue occurs even when using Teams without a mouse.

Microsoft has confirmed a fix

The good news is that this appears to be a known Teams service issue. According to an update shared by a user who opened a Microsoft support ticket, Microsoft confirmed that Teams Desktop and Teams on the Web may freeze when users access Contacts (People App). Microsoft had identified a fix and was deploying it through the Teams service update rings, which is expected to fix it first week of September 2026.

This means that repeatedly clearing the cache or reinstalling Teams may not be necessary if you are affected by this particular problem. As the fix is service-side, the most practical option is to make sure Teams is updated and wait for the fix to reach your tenant. Microsoft Q&A reports also show that Microsoft Support was investigating the issue as a known service incident.

Workarounds if Teams is still freezing

Until the fix reaches your account, you can try a few workarounds:

• Use Teams in Firefox. Some affected users reported that Firefox works normally even though the Teams desktop client and Teams in Edge freeze. This may be useful if you urgently need to access your contacts.
• Reset Teams: Go to Settings > Apps > Installed apps > Microsoft Teams > Advanced options > Reset, then restart Windows. However, reports suggest that this may only provide a temporary workaround.
• Avoid scrolling through the Contacts list where possible until the service-side fix is deployed.

So, if Microsoft Teams freezes when scrolling contacts, don’t immediately assume that your mouse, graphics driver or Windows installation is at fault. The available reports point to a known Teams issue, and Microsoft has confirmed that a fix was being rolled out. If you are still experiencing the problem after the first week of September, checking for the latest Teams update and contacting your Microsoft 365 administrator/support may be worthwhile.

Are you still facing the Teams Contacts freezing issue? Let me know in the comments, especially if the problem has been fixed for you after the latest Teams update.