[BUG] Bug Report: Black gaps/empty spaces appearing during streaming output
Status Fixed / completed
Reported on v2.0.73
Maintainer reply None cached
Workaround ✓ Mentioned in thread ↓
Activity 5 comments · opened Dec 19, 2025 · closed Dec 19, 2025
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
Environment
- Claude Code Version: 2.0.73
- OS: Windows 11
- Node.js Version: 22.11.0
- Terminals Tested:
- Warp (Windows)
- Windows Terminal
- PowerShell
- Issue Started: December 19, 2025 (morning)
Description
Large black/empty gaps appear in the middle of Claude Code responses during streaming. The content that should appear in these gaps is completely missing or not rendered.
Actual Behavior
- Large empty/black sections appear in the middle of responses
- Content appears to be missing or not rendering
- Gaps appear during streaming, not after completion
- Issue affects all content types:
- Plain text
- Bullet lists
- Code blocks
- Tables
Screenshot
<img width="1905" height="905" alt="Image" src="https://github.com/user-attachments/assets/7953c0a1-ac71-4c4f-bce0-900b50069461" />
The screenshot shows a response where lines 1-6 are visible, then a large black gap, then "Quick reference table" at the bottom - with all content in between missing.
Troubleshooting Attempted
- [x] Tested in multiple terminals (Warp, Windows Terminal, PowerShell)
- [x] Issue persists across all terminals
- [x] Issue started on Dec 19, 2025
- [x] Reinstalled Claude Code
- [x] Cleared npm cache
Submitted by: Pratik P
Date: December 19, 2025
What Should Happen?
All response content should render continuously without gaps.
Error Messages/Logs
Steps to Reproduce
- Start a Claude Code session:
claude - Ask any question that generates a multi-line response
- Observe the output during streaming
- Black gaps/empty spaces appear between content sections
Claude Model
Opus
Is this a regression?
I don't know
Last Working Version
_No response_
Claude Code Version
2.0.73
Platform
Anthropic API
Operating System
Windows
Terminal/Shell
Warp
Additional Information
- This was working correctly before December 19, 2025
- No changes were made to system configuration
- Issue appears to have started after an automatic update
5 Comments
Upvote! Been having this issue since yesterday. Seemed fine before then. Searching suggests it's a Windows Powershell problem but I've done suggested fixes and it still happens. Any advice would be great
!Image
Already Reported: https://github.com/anthropics/claude-code/issues/14612
Temporary fix: use last version
npm install -g @anthropic-ai/claude-code@2.0.72
I can't be totally sure yet but i think this cracked it for me!! Thanks
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