[BUG] Claude chats not sending.

[noxvoortella]

Preflight Checklist

• I have searched existing issues and this hasn't been reported yet
• This is a single bug report (please file separate reports for different bugs)
• I am using the latest version of Claude Code

What's Wrong?

When I try to chat, an error pops up that my previous message was not sent. Nothing I try resolves the issue.

What Should Happen?

I should be able to sent a message in the chat.

Error Messages/Logs

Your previous message wasn't sent. You can try again.

Steps to Reproduce

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

Claude 1.8555.2 (a476c3) 2026-05-22T23:04:37.000Z

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

[github-actions]

Found 3 possible duplicate issues:

1. [BUG] Mac desktop app: 'Your previous message wasn't sent' toast fires after successful response, caused by postMessage origin mismatch to claudeusercontent.com #58623
2. [BUG] Update Claude 1.2278.0 (e5213f) - cant send prompt from Claude Code #47783
3. [BUG] Claude Desktop: Send button silently fails - message disappears when context is high #18676

This issue will be automatically closed as a duplicate in 3 days.

• If your issue is a duplicate, please close it and 👍 the existing issue instead
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🤖 Generated with Claude Code

[github-actions]

This issue has been automatically closed as a duplicate of #58623.

If this is incorrect, please re-open this issue or create a new one.

🤖 Generated with Claude Code

[github-actions]

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.