Content Vanishing from Extension Panels

[tutkut28614458]

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.

[matthazz]

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.

[Gustavo Murua]

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.