VS Code extension: existing chats and Cloud work, but creating a new Local conversation fails with “Conversation not found” / “no rollout found”

What version of the IDE extension are you using?

Upgrade from version 0.4.71 to the latest version

What subscription do you have?

team

Which IDE are you using?

VS Code

What platform is your computer?

MacOS

What issue are you seeing?

After updating to the latest Codex VS Code extension, I can still use existing conversations normally, and Cloud works without any problem, but creating a new Local conversation consistently fails.

The UI shows:

• 未找到对话
• Conversation not found

From the extension logs, the most relevant errors are:

• Error fetching conversation summary
• no rollout found for conversation id ...
• No promise for request ID ...

This issue appears to affect only newly created Local conversations in the VS Code extension.
Existing conversations continue to work, and Cloud works normally.

Environment

• VS Code: 1.111.0
• OS: macOS Darwin x64 25.1.0
• Codex CLI: 0.112.0

Relevant log lines

[CodexWebviewProvider] Error fetching conversation summary error={"code":-32600,"message":"no rollout found for conversation id ..."}
No promise for request ID ...

### What steps can reproduce the bug?

1. Open VS Code.
2. Open the project folder:
   `/Users/ixinhoo/dev/works/minspace/ixinhoo-pipipt`
3. Make sure the Codex extension is installed and signed in.
4. Open the Codex panel in VS Code.
5. Create a **new Local conversation**.
6. The new conversation fails to load and shows `Conversation not found`.

Additional observations:
- Opening and continuing an **existing** conversation works.
- Creating a **Cloud** conversation works.
- Running `codex` in the same repo from CLI works.

### What is the expected behavior?

Creating a **new Local conversation** in the VS Code extension should succeed normally.

The new conversation should open correctly, load its summary/state, and allow me to chat in Local mode, just like:
- existing conversations in the extension
- Cloud conversations
- Codex CLI in the same repository

### Additional information

_No response_