Microsoft confirms Edge update bug blocks some Teams users from joining meetings

At a glance:

• A recent Microsoft Edge update introduced a regression tracked as TM1288497 that blocks some Windows users from joining scheduled Teams meetings or meetings via links.
• Microsoft recommends restarting the Teams client as a temporary workaround while it investigates diagnostic data and service changes to develop a fix, with no timeline shared yet.
• Other recent Edge-related Teams issues include a right-click paste bug (TM1279908, fix incoming in next scheduled platform update), desktop client launch failures, and Universal Print sharing problems from a Microsoft Graph API change.

What we know about the meeting join bug

Microsoft confirmed this week that a recent update to its Edge browser introduced a regression that prevents some Windows users from joining Microsoft Teams meetings. The issue is tracked under incident ID TM1288497, and affects only users attempting to join scheduled meetings or meetings accessed via direct links. Redmond acknowledged the problem in a public incident report issued Wednesday afternoon, noting that the bug is tied specifically to the latest Edge release rather than Teams itself.

"We've identified that a recent Edge release introduced a regression that's resulting in failures for some users when attempting to join meetings in Microsoft Teams," the company said in the incident report. Microsoft classified the issue as an advisory, a designation typically reserved for service disruptions with limited scope or impact. The company did not disclose how many users are impacted, nor which geographic regions are affected by the meeting join failures.

"We're furthering our investigation on the diagnostic data and monitoring recent service changes that may be contributing to the impact. We'll provide a timeline of our next steps when one becomes available," Microsoft added. Unlike higher-severity incident classifications, advisories do not trigger broad outage notifications for most enterprise customers. This specific advisory does not include an estimated time to resolution as of yet.

Other recent Edge and Teams service disruptions

This is not the first Edge-related Teams bug reported in recent weeks, as Microsoft has logged several separate service issues tied to browser and platform updates. Last week, the company warned that a separate Edge update broke right-click paste functionality in the Microsoft Teams desktop client. That issue is tracked as TM1279908, and Microsoft noted in a Tuesday update that a fix will roll out to affected customers via the next scheduled platform update.

On Monday, Microsoft also reverted a recent service update that left some customers unable to launch the Teams desktop client entirely. Affected users were stuck on a loading screen displaying the error message: "We're having trouble loading your message. Try refreshing." The company did not specify how many users were impacted by the launch failure issue.

Microsoft is also working to resolve ongoing Universal Print sharing issues that stem from a change to the Microsoft Graph API, rather than an Edge update. The code change prevents users from creating new printer shares, even if they have valid permissions to do so. This issue is separate from the Edge-related bugs, but adds to a string of recent service disruptions for Teams and connected Microsoft 365 tools.

What affected users can do now

For users impacted by the TM1288497 meeting join bug, Microsoft’s only recommended workaround at this time is to restart the Microsoft Teams client. The company confirmed that restarting the client can allow affected users to access meetings, even if the underlying Edge regression remains unpatched. There is no mention of rolling back Edge updates as a workaround, and Microsoft has not shared a timeline for a permanent fix.

Microsoft says it is currently analyzing diagnostic data and monitoring recent service changes to identify the root cause of the Edge regression. Once the source of the bug is identified, the company will develop a patch and share a timeline for its rollout. In the meantime, enterprise IT teams are advised to monitor Microsoft 365 admin center incident reports for updates on TM1288497 and related service issues.