Microsoft が提供する Microsoft 365 のサービス正常性（TM408882）にて、Microsoft Teams の会議で、一部のユーザーが他のユーザーのビデオ フィードを表示できないことがある SI（サービス インシデント）が発生していました。

本事象の影響を受けている場合、一部のユーザーでは会議開始時に自分のビデオの共有ができない可能性があります。

なお、いったんカメラを OFF に変更して、再度、ON にするか、ウィンドウのサイズを変更することで回避できます。

現在、修正プログラムの展開を完了し、すべてのユーザーで影響が解消されています。

本事象は、Microsoft Teams の 1.0.0.2022071828 内のコードの問題が、動画のレンダリングを開始するために必要な動画レイアウト ロジックに影響をおよぼした結果、発生した問題になります。

今後は、新しいビルドのテスト手順を見直し、今後、同様のコード問題が発生しないような改善策を検討しているとのことです。

目次

Some users may be unable to view other users’ video feeds in Microsoft Teams meetings – TM408882

サービス：Microsoft Teams

状態：Service restored

ユーザーへの影響：Users may be unable to view other users’ video feeds in Microsoft Teams meetings.

Microsoft 365 のサービス正常性（TM408882）にて、Microsoft Teams の会議で、一部のユーザーが他のユーザーのビデオ フィードを表示できないことがある SI（サービス インシデント）が発生していました。

本事象の影響を受けている場合、一部のユーザーでは会議開始時に自分のビデオの共有ができない可能性があります。

なお、いったんカメラを OFF に変更して、再度、ON にするか、ウィンドウのサイズを変更することで回避できます。

現在、修正プログラムの展開を完了し、すべてのユーザーで影響が解消されています。

本事象は、Microsoft Teams の 1.0.0.2022071828 内のコードの問題が、動画のレンダリングを開始するために必要な動画レイアウト ロジックに影響をおよぼした結果、発生した問題になります。

今後は、新しいビルドのテスト手順を見直し、今後、同様のコード問題が発生しないような改善策を検討しているとのことです。

August 18, 2022 1:13 AM – Service restored

• ・Title : Some users may be unable to view other users’ video feeds in Microsoft Teams meetings
• ・User Impact : Users may have been unable to view other users’ video feeds in Microsoft Teams meetings.
• ・More info : Some users may also have been unable share their video when initiating a meeting.
• Users may have been able to turn their camera off and then back on or resize the window to avoid these issues.
• ・Final status : The fix deployment has completed and remediated impact for all users.
• ・Scope of impact : This issue affected some users when viewing other users’ video feeds or when attempting to share their video in Microsoft Teams meetings.
• ・Start time : Thursday, July 21, 2022, 1:32 AM (7/20/2022, 4:32 PM UTC)
• ・End time : Wednesday, August 17, 2022, 5:30 AM (8/16/2022, 8:30 PM UTC)
• ・Root cause : A code issue within build 1.0.0.2022071828 of Microsoft Teams was affecting the video layout logic that is necessary for video rendering to begin, resulting in impact.
• ・Next steps : – We’re reviewing our new build testing procedures to identify improvements that will prevent similar code issues from occurring in the future.
• This is the final update for the event.

August 13, 2022 12:20 AM – Service restored

• ・Title : Some users may be unable to view other users’ video feeds in Microsoft Teams meetings
• ・User Impact : Users may be unable to view other users’ video feeds in Microsoft Teams meetings.
• ・More info : Some users may also be unable share their video when initiating a meeting.
• Users may be able to turn their camera off and then back on or resize the window to avoid these issues.
• ・Current status : We’re monitoring our fix deployment, which is expected to complete and remediate impact for all users by Wednesday, August 17, 2022.
• ・Scope of impact : This issue affects some users when viewing other users’ video feeds or when attempting to share their video in Microsoft Teams meetings.
• ・Start time : Thursday, July 21, 2022, 1:32 AM (7/20/2022, 4:32 PM UTC)
• ・Root cause : A code issue within build 1.0.0.2022071828 of Microsoft Teams is affecting the video layout logic that is necessary for video rendering to begin, resulting in impact.
• ・Next update by : Thursday, August 18, 2022, 2:00 AM (8/17/2022, 5:00 PM UTC)

August 10, 2022 4:17 AM – Service restored

• ・Title : Some users may be unable to view other users’ video feeds in Microsoft Teams meetings
• ・User impact : Users may be unable to view other users’ video feeds in Microsoft Teams meetings.
• ・More info : Some users may also be unable share their video when initiating a meeting.
• Users may be able to turn their camera off and then back on or resize the window to avoid these issues.
• ・Current status : After confirming the viability of our fix with a group of impacted users, we’re fully deploying the fix to the affected environment to remediate impact.
• The build version containing the fix is 1.0.0.2022072623.
• We’ll provide an estimate for our fix deployment timeline if available following the deployment commencement.
• ・Scope of impact : This issue affects some users when viewing other users’ video feeds or when attempting to share their video in Microsoft Teams meetings.
• ・Start time : Thursday, July 21, 2022, 1:32 AM (7/20/2022, 4:32 PM UTC)
• ・Root cause : A code issue within build 1.0.0.2022071828 of Microsoft Teams is affecting the video layout logic that is necessary for video rendering to begin, resulting in impact.
• ・Next update by : Saturday, August 13, 2022, 2:00 AM (8/12/2022, 5:00 PM UTC)

August 9, 2022 3:03 AM – Service restored

• ・Title : Some users may be unable to view other users’ video feeds in Microsoft Teams meetings
• ・User Impact : Users may be unable to view other users’ video feeds in Microsoft Teams meetings.
• ・More info : Some users may also be unable share their video when initiating a meeting.
• Users may be able to turn their camera off and then back on or resize the window to avoid these issues.
• ・Current status : We’re reaching out to some impacted users to confirm if the deployment of the fix has remediated impact for those users that have received the fix.
• Once we receive confirmation, we’ll proceed with the next phase in our deployment of the fix to the remaining impacted infrastructures.
• ・Scope of impact : This issue affects some users when viewing other users’ video feeds or when attempting to share their video in Microsoft Teams meetings.
• ・Start time : Thursday, July 21, 2022, 1:32 AM (7/20/2022, 4:32 PM UTC)
• ・Root cause : A code issue within build 1.0.0.2022071828 of Microsoft Teams is affecting the video layout logic that is necessary for video rendering to begin, resulting in impact.
• ・Next update by : Wednesday, August 10, 2022, 5:00 AM (8/9/2022, 8:00 PM UTC)

August 4, 2022 9:40 AM – Service restored

• ・Title : Some users may be unable to view other users’ video feeds in Microsoft Teams meetings
• ・User Impact : Users may be unable to view other users’ video feeds in Microsoft Teams meetings.
• ・More info : Some users may also be unable share their video when initiating a meeting.
• Users may be able to turn their camera off and then back on or resize the window to avoid these issues.
• ・Current status : We’re initiating the expedited fix deployment and we’ll be actively monitoring its progress.
• We anticipate the completion of this deployment across the affected environments by Tuesday, August 9, 2022, and we’ll validate this expected completion timeline at the next scheduled update.
• ・Scope of impact : This issue affects some users when viewing other users’ video feeds or when attempting to share their video in Microsoft Teams meetings.
• ・Start time : Thursday, July 21, 2022, 1:32 AM (7/20/2022, 4:32 PM UTC)
• ・Estimated time to resolve : We anticipate the deployment will complete by Tuesday, August 9, 2022.
• ・Root cause : A code issue within the latest build of Microsoft Teams is affecting the video layout logic that is necessary for video rendering to begin, resulting in impact.
• ・Next update by : Tuesday, August 9, 2022, 4:00 AM (8/8/2022, 7:00 PM UTC)

August 4, 2022 3:13 AM – Service restored

• ・Title : Some users may be unable to view other users’ video feeds in Microsoft Teams meetings
• ・User Impact : Users may be unable to view other users’ video feeds in Microsoft Teams meetings.
• ・More info : Some users may also be unable share their video when initiating a meeting.
• Users may be able to turn their camera off and then back on or resize the window to avoid these issues.
• ・Current status : We’ve identified that the code issue that has resulted in impact is affecting the video layout logic that is necessary for video rendering to begin.
• The aforementioned code fix corrects this logic and we’re discussing options to expedite the fix deployment to remediate impact as soon as possible.
• We’ll provide a more accurate timeline for completion as soon as one becomes available.
• ・Scope of impact : Your organization is affected by this event, and this issue affects some users in Microsoft Teams meetings.
• ・Root cause : A code issue within the latest build of Microsoft Teams is affecting the video layout logic that is necessary for video rendering to begin, resulting in impact.
• ・Next update by : Thursday, August 11, 2022, 4:00 AM (8/10/2022, 7:00 PM UTC)

August 4, 2022 1:58 AM – Service restored

• ・Title : Some users may be unable to view other users’ video feeds in Microsoft Teams meetings
• ・User Impact : Users may be unable to view other users’ video feeds in Microsoft Teams meetings.
• ・More info : Some users may also be unable share their video when initiating a meeting.
• Users may be able to turn their camera off and then back on or resize the window to avoid these issues.
• ・Current status : We’ve identified a recent service change that has introduced a code regression, resulting in impact.
• A fix has been created and deployed to the affected environment, which we expect will address this regression and remediate the impact.
• We’ll provide a timeline for deployment completion as soon as one becomes available.
• ・Scope of impact : This issue affects some users when viewing other users’ video feeds or when attempting to share their video in Microsoft Teams meetings.
• ・Next update by : Thursday, August 4, 2022, 5:00 AM (8/3/2022, 8:00 PM UTC)

August 4, 2022 12:46 AM – Service restored

• ・Title : Some users may be unable to view other users’ video feeds in Microsoft Teams meetings
• ・User Impact : Users may be unable to view other users’ video feeds in Microsoft Teams meetings.
• ・More info : Some users may also be unable share their video when initiating a meeting.
• Users may be able to turn their camera off and then back on or resize the window to avoid these issues.
• ・Current status : We’re analyzing Microsoft Teams diagnostic logs to determine the source of the issue and create a fix that remediates impact.
• ・Scope of impact : This issue affects some users when viewing other users’ video feeds or when attempting to share their video in Microsoft Teams meetings.
• ・Next update by : Thursday, August 4, 2022, 2:00 AM (8/3/2022, 5:00 PM UTC)

Microsoft Teams とは？

Microsoft Teams は、Microsoft の提供するコラボレーション ツールになります。

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関連リンク

• ・Microsoft Teams｜リモート ワークのためのコラボレーション ツール：https://www.microsoft.com/ja-jp/microsoft-365/microsoft-teams/group-chat-software
• ・日本マイクロソフト – Official Home Page：https://www.microsoft.com/ja-jp

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