Coding agent CLI VS Code extension drops submitted messages or leaves them queued

After an extension update, pressing Enter clears the composer but the message never appears and the agent does not reply. Resending several times eventually works; an older queued prompt may re-run after a reload.

Difficulty

Moderate

Time

~15 min

Steps

Fixed in

—

Last checked

2026-10-15

Unverified: we could not confirm from the sources that a fix shipped. Source: issue closed as completed, no linked fix. Last checked 2026-10-15.

Symptom

Evidence what you'll see

Extension logs show GET /tbo/primary with status=404
Log line: [IpcClient] Received broadcast but no handler is configured method=thread-queued-followups-changed
Reported on builds 26.928.31416, 26.930.21537 and 26.930.31730 on Linux, macOS and Windows

Cause

A staff member acknowledged an extension bug on the issue. No public root cause was posted; user logs point at queued follow-up handling.

Fix steps

0 of 4 done

Step 1Update the extension to 26.930.41038 or later; a staff comment on the issue names that build.
Step 2If the marketplace still offers an older build, force-install: code --install-extension <extension-id>@26.930.41038 --force (the issue comment gives the exact id).
Step 3Confirm the version with code --list-extensions --show-versions.
Step 4Interim option from users: pin 26.917.62051 the same way and reload the window (newer models may not be offered on it).

Your check marks stay in this browser only.

Verify the fix worked

Send several short prompts in a row, idle and while a turn is running. Each one appears and gets a reply.
If it still fails, add your extension version, OS and remote setup (SSH or WSL) to the issue.

Did this fix it?

Sources and credit

Summarized in our own words from these public reports. Credit goes to their authors.

Provided as is, without warranty. Test in a non-production environment and back up first. Security-related steps: verify against the official docs. Terms · Request removal or attribution change