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tutkut28614458
tutkut28614458
Known Participant
April 4, 2024

Content Vanishing from Extension Panels

  • April 4, 2024
  • 8 replies
  • 1004 views

We faced a persistent issue in our recent project that involved several extension panels. Closing one extension panel window occasionally caused the content in another active extension panel to vanish.

(Ref: https://youtu.be/8icV1-ORiLU )


We investigated this issue and found that it is exclusive to Windows . After spending several hours of debugging, we found out the pattern. The issue applies to all the extensions that exist. Closing an earlier opened extension panel causes the content in the most recently opened panel to vanish. We confirmed this bug persists across several After Effects versions (from 2019 to 2024) on Windows 10.

(Ref: https://youtu.be/c-c1G9ALV0E)

 

To replicate this issue, follow these steps:

  1. Open one extension panel (A).
  2. Open another panel (B).
  3. Close panel A.
  4. Notice the content in panel B disappears

 

Our project relies heavily on using multiple panels, and this bug could frustrate users. Hope you can find a solution for this.

 

    8 replies

    JohnColombo17100380
    Community Manager
    JohnColombo17100380Community Manager
    Community Manager
    March 17, 2025

    @tutkut28614458 Our CEP team has been made aware of this issue, but there aren't any updates at this time. There is a potential workaround documented here, with options for both end users and panel developers: https://github.com/Adobe-CEP/CEP-Resources/blob/master/ZXPSignCMD/KnownIssue2024.md.

     

    - John, After Effects Engineering Team

    tutkut28614458
    tutkut28614458Author
    Known Participant
    March 16, 2025

    Hey @JohnColombo17100380 I wanted to check if there are any updates on this issue. I also realized that changing layouts triggers the problem, which makes it quite unproductive as it causes the extension panels to lose their content.

    JohnColombo17100380
    Community Manager
    JohnColombo17100380Community Manager
    Community Manager
    January 15, 2025

    Thank you for the ping @tutkut28614458 and my apologies for the delay in response. I've forwarded this thread to our CEP panel team for further investigation.

     

    Cheers,

    - John, After Effects Engineering Team 

      tutkut28614458
      tutkut28614458Author
      Known Participant
      January 14, 2025

      Hey Max, same here. Even identifying the exact source of the problem and pointing out where to look, no one bothered to reply. It’s really frustrating being ignored.

      @JohnColombo17100380 
      @Kevin-Monahan 
      @nishu_kush
      @Jessica McMillan 

        M
        max2012181555
        Inspiring
        January 14, 2025

        I posted the same issue on March 4, 2024, here: https://community.adobe.com/t5/after-effects-discussions/strange-behavior-in-after-effects-ui-when-closing-cep-extensions/m-p/14503510#M245963, but haven't received any helpful responses.

          M
          martin_6576
          Participant
          October 18, 2024

          Having the same issue here, no solution yet. It leaves me unable to use several extensions

            G
            Gustavo26844737v98u
            Participant
            October 1, 2024

            I'm on a MacBook Pro with After 24.1.0 (Build 78) on Sonoma 14.5. Similar bug here — MoBar panel got empty, closed it and when trying to make it appear again by choosing it on Window > Extensions, nothing happens.

            matthazz
            matthazz
            Participant
            July 18, 2024

            I'm on an M1 Max MacBook Pro, running the latest After Effects and MacOS Sonoma. I, too, have this bug with an extension: the content of the pane disappears. I have to resistall the extension to get it to come back.

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