[BUG] Invalid request The request couldn't be completed — open Details for more. View details API Error: 400 messages: text content blocks must be non-empty

Preflight Checklist

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

What's Wrong?

When i add an image and text after being in a session for a while i start to get these error messages with increasing regularity unitl i start a new session. Non of my text blocks were blank

"Invalid request
The request couldn't be completed — open Details for more.
View details
API Error: 400 messages: text content blocks must be non-empty"

What Should Happen?

Claude should just keep working

Error Messages/Logs

Invalid request
The request couldn't be completed — open Details for more.
View details
API Error: 400 messages: text content blocks must be non-empty

Steps to Reproduce

Use claude code web for long enough until the errors start to appear

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Web

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Other

Additional Information

_No response_