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Optimized Teams Meeting frequently shows "black box" in video stream window


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Dear all,

I've been seeing frequent issues with optimized Teams meetings in my CVAD deployment. It seems like a "black box" is being overlayed onto the video meeting window. The "black box" always remains at the same spot and moving or resizing the video meeting window results in the "black box" staying in the same place and size.

 

Full screen window:

 

876020752_2022-04-2010_49_15-CLIENTAO-DesktopViewer.thumb.png.489f026661f081a36b45393a97f29880.png

resized window, i.d. smaller:
 

1826297619_2022-04-2011_09_06-CLIENTAO-DesktopViewer.thumb.png.2f4a1adae55c1f4b672076fb3370edef.png

What does this mean? Misconfiguration in terms of Teams optimization?

The following software components are in place:

  • CVAD 7 2012 VDA 
  • Windows 10 Pro 21H2
  • Microsoft Teams 1.5.00.8070 (64-Bit), Citrix HDX Optimized

 

The following policies are in place:

 

image.png.a0672e0de01e8e0a2f372e41afeff2bc.png

 

In case you guys need more information, just let me know. Many thanks

Alex

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7 answers to this question

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Hi guys, sorry for the delay...

 

I just checked the CWA version on the affected client device:

  • CWA: 2202 
  • Windows 10 Enterprise 21H2

I'm running Teams within a Published Desktop. I coss-checked the behaviour with a Teams session runnig on a RDSH Windows Server 2019:

  • Teams v1.5.00.5967
  • CVAD 7 2203 VDA

with this configuration I have no issues, no "black box" ... I then upgraded the VDA on my Windows 10 from v2012 to v2203, rebooted the devices, and connected again. Issue still exists.

 

So, somehow it only happens when VDAing to a Windows 10 desktop instead of an RDSH desktop (based on Windows Server 2019).

 

Regarding the "Secure Screensharing" technology: it got me thinking insofar, that my Windows 10 VDA has a CWA 2203 of its own installed. The Windows 10 VDA is a physical PC in my office which I use to "Remote PC Access", and from there I can VDA to our internal RDSH with Published Desktop and Apps. So maybe the CWA and its integrated App Protection feature are the reason for the "black box" showing up? btw: the "black box" always appears at the exact same place and doesn't scale or anything.


Regards

Alex

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8 hours ago, Alexander Ollischer1709156587 said:

Dear all,

I've been seeing frequent issues with optimized Teams meetings in my CVAD deployment. It seems like a "black box" is being overlayed onto the video meeting window. The "black box" always remains at the same spot and moving or resizing the video meeting window results in the "black box" staying in the same place and size.

 

Full screen window:

 

876020752_2022-04-2010_49_15-CLIENTAO-DesktopViewer.thumb.png.489f026661f081a36b45393a97f29880.png

resized window, i.d. smaller:
 

1826297619_2022-04-2011_09_06-CLIENTAO-DesktopViewer.thumb.png.2f4a1adae55c1f4b672076fb3370edef.png

What does this mean? Misconfiguration in terms of Teams optimization?

The following software components are in place:

  • CVAD 7 2012 VDA 
  • Windows 10 Pro 21H2
  • Microsoft Teams 1.5.00.8070 (64-Bit), Citrix HDX Optimized

 

The following policies are in place:

 

image.png.a0672e0de01e8e0a2f372e41afeff2bc.png

 

In case you guys need more information, just let me know. Many thanks

Alex

 CWA version and platform OS?

Can you repro this consistently? Does it happen on other VDA versions, when connecting from the same endpoint?

And vice versa, does it repro when connecting to the same VDA from a different endpoint?

 

 

Teams cannot be misconfigured to expose such an artifact.

 

And just to confirm, 2012 VDA?

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Are you running Teams as a Published App or within a Published Desktop?
Also if the CWA version of the person sharing their screen is older than 2010 it could be the "Secure Screensharing" feature blocking them from sharing a client-side application that is displayed on top of the Desktop Viewer.

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