Microsoft Teams Mac OS client is not recognizing external cameras after updating to version 1.3.00.18164.

Anonymous
2020-07-24T04:03:58+00:00

Microsoft Teams Mac OS client stop recognizing external cameras (EOS Webcam utility, EpocCam, NDI client) after updating to version 1.3.00.18164; only MacBook Pro built-in camera is listed as available device.

※Update executed today (07/23) some hours ago.

Web app through browser (Edge) is OK, it kept external cameras listing and they work.

Does anybody had came across same issue after updating?

OS: macOS Catalina version 10.15.6

Microsoft Teams version: 1.3.00.18164

Microsoft Teams | Microsoft Teams for business | Teams for Mac

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Anonymous
2020-07-29T21:10:25+00:00

I had the exact same thing happen to me after updating to the latest version of teams.  However, I was able to come up with a solution that resolves the issue entirely.  It has to do with how Apple is starting to codesign specific apps to block 3rd party CoreMediaIO plugins.  If we remove that codesigning, then it will allow those 3rd party plugins to function again.

The fix is pretty simple.  First, completely exit out of Teams, then open Terminal and issue the following commands:

If you havent installed xcode previously, first run:

xcode-select --install

Then, run:

sudo codesign --remove-signature "/Applications/Microsoft Teams.app"

and:

sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper.app"

Once you've issued those commands, open up Teams.  It should ask you for an administrator password to allow the (now) unsigned application to access your keychain.  Once entering your password and selecting, "Always Allow", the issue should be resolved. (At least until the next update to teams is released).

*****UPDATE*****

As of version 1.3.00.28778 the process has changed and the above workaround is no longer valid.  In order to get this fix working on the latest version of Teams, additional commands will need to be entered.  Keep in mind, these commands are relative to where you have Teams installed, so if it is in a different location, you'll need to adjust the file path accordingly.  So as it stands currently here are all of the commands (must be entered one by one and not pasted in one big block) that will need to be entered:

xcode-select --install (only if you haven't already)

sudo codesign --remove-signature "/Applications/Microsoft Teams.app"

sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper.app"

sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper (GPU).app"

sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper (Plugin).app"

sudo codesign --remove-signature "/Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft Teams Helper (Renderer).app"

******UPDATE #2******

I totally forgot about this thread and decided to take a look at it again. From the latest comments, it looks like a lot of you are already aware that this issue has officially officially fixed by Microsoft as of version 1.4.00.8872, so this workaround should no longer be required as long as you are up to date.

Source: https://docs.microsoft.com/en-us/microsoftteams/troubleshoot/teams-on-mac/virtual-camera-doesnt-work-macos

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  1. Anonymous
    2021-11-02T14:07:07+00:00

    danke Gregor für die irrsinnig schnelle Antwort! Ich habe bei OBS und MS Teams ebenfalls die aktuellste Version, bei NDI jedoch 1.0 und finde keinen Downloadlink für die 3.0!? Vielleicht liegt es daran, komme hier aber nicht weiter... Wo kann ich die Version 3.0 downloaden?

    Gruß,

    Konstantin

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  2. Anonymous
    2021-11-02T13:23:34+00:00

    Hi, I did a quick test with OBS Studio 27.1.3 and Teams 1.4.00.22368 on Monterey 12.0.1 and in fact, the preview of the OBS virtual camera works well, but as known from the problem last time, others cannot see me. But in my case, also like before, the pipeline through the NDI Virtual Input (v3.0) still works.

    Thanks, I hate it.

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  3. Anonymous
    2021-11-02T12:57:06+00:00

    Hilfe!! Gestern auf neuestes ios upgedatet, nun funktioniert die virtuelle Kamera über OBS Studio in MS Teams selbst mit NDI nicht mehr... Ging bis vorgestern noch. Wer kann helfen? Im Netzt scheint das "Problem" noch nicht bekannt zu sein.

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  4. Anonymous
    2021-06-25T14:22:24+00:00

    When you are on version 1.4.00.11161, where you should be as you can try to install the driver, the workarounds are not needed anymore.

    If you want to check, if your problem is related to the workaround, reinstall the current Version, then don't apply the workaround and try to enable the driver. If this still doesn't work, your problem is not related to the virtual-camera-problem and should be discussed elsewhere. If it works, please leave us a note that this helped, so others can benefit from what you have experienced.

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