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Large chats in VSCode extremely slow to load #20094

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@jasonpierson

What version of the IDE extension are you using?

26.422.62136

What subscription do you have?

Pro

Which IDE are you using?

VS Code

What platform is your computer?

Darwin 25.4.0 arm64 arm

What issue are you seeing?

When I select a long-running chat, nothing appears in the Codex sidebar. Sometimes I can get the chat to appear if I click around to another chat and reload it, but not all the time. A loading bar with a percentage or some indication its loading would be very helpful. Otherwise I dont think its doing anything and start clicking around.

What steps can reproduce the bug?

  1. Create a long-running chat in the codex extension
  2. Close VS Code
  3. Open VS Code
  4. Attempt to load the chat
Image

What is the expected behavior?

The expected behavior is the chat loads(at least partially) immediately.

Additional information

No response

Activity

  1. added
    bugSomething isn't working
    sessionIssues involving session (thread) management, resuming, forking, naming, archiving
    on Apr 28, 2026
  2. ndvbd commented on Jul 18, 2026

    @ndvbd

    When Codex loads, it should show some console/log information so we can understand what's going on and why it is stuck so often. This is extremely annoying.

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    bugSomething isn't workingextensionIssues related to the VS Code extensionperformancesessionIssues involving session (thread) management, resuming, forking, naming, archiving

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