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Zencoder Chat Screen Issues in JetBrains IDEs

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Problem Description

Starting with JetBrains IDE version 2025.1, the webview that renders the Zencoder chat runs in a separate process using OSR. On Windows in particular, that change can cause the chat to render incorrectly—most commonly as a completely white panel (the internal “White Screen of Death” or WSOD), but sometimes as a zoomed-in or partially rendered interface with missing components. White Screen in JetBrains Chat

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Symptoms

  • The Zencoder chat panel opens but displays only or partly a white screen
  • The panel renders zoomed-in, cropped, or with missing components even though the chat is technically loaded
  • No in-product error messages appear, although IDE logs may show the java.lang.NullPointerException noted above
  • The chat is usually completely non-responsive while in this state
  • The issue may persist across IDE restarts, version 2025.1+ updates, or moving the IDE between multiple monitors

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Causes

This issue stems from how JCEF (Java Chromium Embedded Framework) is implemented in JetBrains IDEs. JCEF is a Java port of CEF (Chromium Embedded Framework) that JetBrains uses to render web content within their IDEs. Starting with JetBrains 2025.1, JCEF runs out-of-process with off-screen rendering (OSR); in some environments (primarily Windows) that combination leads to the white or distorted screens described above.

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Solutions

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Option 1: Update to JetBrains 2025.2 EAP

JetBrains has recently released EAP 6 for their 2025.2 version of IDEs, which includes fixes for JCEF-related issues.
If your organization allows the use of Early Access Program (EAP) versions, this is the recommended solution.
  1. Download and install the latest EAP version from the JetBrains website
  2. Restart your IDE
  3. The Zencoder chat should now display correctly
EAP versions are pre-release software and may contain bugs or instabilities. If your organization has strict software policies, you may need to wait for the official 2025.2 release.

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Option 2: Disable Out-of-Process JCEF (Workaround)

If you cannot use the EAP version, you can apply this workaround by modifying your IDE’s VM options:
  1. In your JetBrains IDE, go to Help > Edit Custom VM Options…
  2. Add the following line to the end of the file:
-Dide.browser.jcef.out-of-process.enabled=false
  1. Save the file
  2. Restart your IDE completely
  3. The Zencoder chat should now display correctly

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Additional Information

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Affected IDEs

This issue can affect all JetBrains IDEs including:
  • IntelliJ IDEA
  • PyCharm
  • WebStorm
  • PhpStorm
  • Rider
  • Android Studio
  • Other JetBrains-based IDEs

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Troubleshooting

If the solutions provided don’t resolve your issue:
  1. Make sure you’ve completely restarted your IDE after applying changes and saved the file
  2. Try resetting your IDE’s configuration (File > Invalidate Caches / Restart)
  3. Check if the issue persists when moving your IDE window between different monitors
  4. Collect the relevant logs from your IDE
  5. Contact our support team with the details

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Future Updates

We’re working closely with the JetBrains team to ensure this issue is fully resolved in future releases. The permanent fix is expected to be included in the official JetBrains 2025.2 release.