Failed to send prompt in specific session

[sahilneverdies]

Description

When i am sending a prompt or hello message in old session it say
failed to send prompt in specific session

And when i try it in new session it gives response

Plugins

No response

OpenCode version

1.18.4

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

No response

Terminal

No response

[github-actions]

This issue doesn't fully meet our contributing guidelines.

What needs to be fixed:

• Steps to reproduce is empty — please provide a step-by-step sequence to trigger the error
• Operating System and Terminal fields are missing — these help us triage platform-specific bugs

Please edit this issue to address the above within 2 hours, or it will be automatically closed.

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This issue might be a duplicate of existing issues. Please check:

• ERROR - "Failed to send prompt. Unexpected server error. Check server logs for details." #36826: Same "Failed to send prompt. Unexpected server error" error message reported with a different model/context
• Aborted assistant turn persisted with zero content bricks the session: empty assistant message replayed to provider (400 "must not be empty") #37946: Session-specific failure where an aborted turn bricks the session

If you believe this was flagged incorrectly, please let a maintainer know.

[github-actions]

This issue has been automatically closed because it was not updated to meet our contributing guidelines within the 2-hour window.

Feel free to open a new issue that follows our issue templates.