An unexpected error occurred when I chat with agent

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Request ID: f6dd4117-6767-48aa-acaa-9a13c7991eea

in agents window, chat with agent in ask mode with Composer 2.5 Fast

Version: 3.8.11 (system setup)
VS Code Extension API: 1.105.1
Commit: e56ad3440df06d22ca7501e65fd518e905486ef0
Date: 2026-06-18T01:40:18.333Z
Layout: editor
Build Type: Stable
Release Track: Default
Electron: 40.10.3
Chromium: 144.0.7559.236
Node.js: 24.15.0
V8: 14.4.258.32-electron.0
xterm.js: 6.1.0-beta.256
OS: Windows_NT x64 10.0.26200

5

Hey, thanks for the report. “An unexpected error occurred” is a generic fallback we show when the server doesn’t return a specific error message, so we can’t trace the root cause from that alone. On your account, Composer 2.5 Fast requests are completing successfully, so this looks like a one-off glitch.

If it happens again, we’ll need a couple things to investigate:

  • The full error text. Expand the error message, it usually includes details like PING timed out, Blob not found, connection error, etc, and send a screenshot.
  • The real Request ID: chat menu (three dots in the top right) > Copy Request ID. What you sent is a generation UUID, not the server-side ID.
  • Whether it reproduces consistently or it was just a single occurrence.

If it hasn’t happened again yet, it was most likely a transient issue and retrying the request should be enough. Let me know if you can reproduce it and we’ll dig deeper.