Starting about 7/29/2024, Teams in AVD was showing blank boxes instead of camera video and shared content in meetings of more than 2 people. I think the cause of this was Microsoft's fix for Issue ID: TM808152 Users were unable to use the application window sharing feature within Microsoft Teams meetings on AVD and Windows 365. Microsoft says: Impact is limited to users accessing Microsoft Teams via AVD and Windows 365 while utilizing WebRTC based optimization. We are in East US.
I tested running Teams with the Remote Desktop Services WebRTC Redirector service stopped, and that did fix the issue, but CPU usage was so much higher it's not a practical solution.
This is a workaround for being able to see shared content: Go to Together Mode, then select Focus On Content. So far, that has made the shared content visible, although you lose the video feeds from participants. If you want to see faces, Together Mode without Focus on Content works.
If you're having this issue, please open a ticket in Microsoft 365, and reference Issue ID: TM808152.
This is from the Microsoft Issue ID:
Root cause
We've identified an issue preventing the Teams application window sharing feature from functioning as intended after a user attempts to initiate an application window sharing session on AVD or Windows 365.
Current status
Aug 1, 2024, 11:43 AM EDT
We're performing the final validation checks and expect this to fully complete by tomorrow.
Next update by:
Friday, August 2, 2024 at 12:00 PM EDT
History of updates
Jul 29, 2024, 11:40 AM EDT
The long-term fix has nearly completed deployment and we continue to perform the final validation processes.
Jul 23, 2024, 11:43 AM EDT
We've completed a period of internal testing to verify the long-term fix provides the expected relief from the underlying root cause. We're now deploying the fix to the affected infrastructure and we'll provide further updates as this progresses.
Jul 22, 2024, 11:55 AM EDT
We've completed the development of the long-term fix to resolve the underlying root cause. We're now conducting internal testing to ensure impact is fully remediated before we begin the deployment to push the fix to the affected infrastructure.
Jul 15, 2024, 11:57 AM EDT
We're making significant progress developing the long-term fix and this work is nearing completion. Once the development completes, we'll begin a period of internal testing to ensure impact is fully resolved before we deploy the fix to the affected infrastructure.
Jul 8, 2024, 11:56 AM EDT
We're continuing to develop the long-term fix to resolve the underlying root cause. Once complete, we'll conduct a period of internal testing to ensure the issue is fully remediated before we begin deploying the fix to the affected infrastructure.
Jul 3, 2024, 5:34 PM EDT
We've identified a configuration issue which is preventing users from using the application window sharing feature during a Microsoft Teams meeting. We're developing a fix to provide long-term relief and will provide more updates as they become available.
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