"Unexpected data type" error in After Effects (Beta)

[Frank_B]

After today's Beta update there's a pop up window upon the application launch (see the image attached).
There's no way to close the window and proceed to start using AfterEffects.
In results the app has to be forced shut down from the Windows Task Manager.

[Brian C Carter]

Hi Frank.

There seems to be an issue with PNG files on Windows. We're investigating and hope to update you soon!

[JohnColombo]

Hi @Frank_B,

Thank you for reporting this error. We are aware of this issue with certain third-party script panels in the latest Beta builds. We are actively working on a fix for this.

If you delete the ModifiedWorkspaces and OriginalUserWorkspaces folders in the preferences to reset the workspaces, you should be able to open After Effects (Beta) without encountering the error. If you then open third-party panels one at a time, you will be able to determine which one(s) are causing the error, which should allow you to continue using the Beta.

Thanks again,

- John, After Effects Engineering Team 

[Frank_B]

@JohnColomboThank you for the reply.
It worked. I've removed the said folders and run AE Beta in Safe mode.
Trying to open third-party script panels triggered the error pop-up window.

[AtaurRaziq1]

error message says 

Unexpected data type

[JohnColombo]

Hi @AtaurRaziq1,

Thank you for reporting this. We are aware of this issue and actively investigating. I'll be merging this report with another existing thread.

Thanks again,

- John, After Effects Engineering Team 

[marketing@LH]

Regular jsx scripts working fine.  Any with a .bin crash the system.

[Jessica McMillan]

Hello marketing@LH 

Are you using AE beta or the release version? We have a known bug in Beta for ScriptUI using PNGs where we have a fix we are working to get pushed out once it passes internal testing.

All the best,

Jessica McMillan
AE Engineering

[marketing@LH]

Yes.  That is it exactly.  2024 beta downloaded this morning.  As long as i dont fired ine of those scripts, im good.  Cant wait for the fix!   You guys rock. 

[JohnColombo]

Hi all,

You should find this is fixed in the latest 24.5 Beta builds. Please let us know if you continue to encounter it.

Thanks again for reporting this issue,

- John, After Effects Engineering Team