Photoshop UXP fails to launch.

Photoshop UXP Plugin API
1

Photoshop UXP crashes immediately upon startup, and the panel fails to load. Even when attempting to load it via the UXP Developer Tool, main.js does not execute, and index.html is not displayed.

The following errors appear in the application logs every time Photoshop starts:
IMS config not set
TypeError: Cannot read properties of undefined (reading ‘name’)
Invalid locale meta information
Invalid survey content
Headless mode
Crash in js/5.js

The issue persists even after reinstalling the Creative Cloud desktop app and Photoshop, deleting Adobe cache folders, and disabling Windows Defender features (SmartScreen, PUA, and Network Protection). The problem also recurs when tested on a different PC.

My account’s region settings are correct, and Adobe Support directed me to the Developer Forum.

I would appreciate any advice on how to resolve this.

*Apologies if a similar question has already been posted.

2

Hello, could you please try running one of the sample plugins available in the Starter Template. You can try loading it to verify whether it loads successfully.

You can also try one of the samples from the Photoshop plugin sample repository.

Please make sure that Developer Mode is enabled, if you have not already done so,

If it still fails, could you check the UXP logs. They may provide more insights.

macOS

/Users//Library/Logs/Adobe/Adobe Photoshop 2026/UXPLogs

Windows

C:\Users\\AppData\Roaming\Adobe\Adobe Photoshop\Logs

3

Hello, thank you for your response.

I tested the hello-world-panel-js-sample, and index.html loads successfully.
This confirms that the UXP runtime itself is working.

However, the UXP logs show that Photoshop’s internal CCX/IMS/Discovery modules are failing, even though CCXProcess is successfully providing data.

Here are the key errors from the UXP logs:

  • IMS config not set
  • TypeError: Cannot read properties of undefined (reading ‘name’) in js/5.js
  • Invalid locale meta information
  • Invalid survey content
  • Headless mode has no photoshopAction

At the same time, CCX data loads correctly:

  • “Received fresh data from CCXProcess for Home”
  • “Received fresh data from CCXProcess for Discover-Panel”
  • “Received fresh data from CCXProcess for Utut”

This suggests that:

  • UXP runtime is OK
  • CCXProcess is OK
  • Network and locale (ja_JP) are OK
  • But Photoshop’s internal IMS/Discovery/Survey modules are failing during initialization

I have uploaded the UXP log file to the URL below.

Could you please advise what internal component might be corrupted, or what additional logs you need? I can provide more UXPLogs if necessary.

Best Regards.