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[BUG] Claude Code frozen at startup - suspected memory leak. #3282
Description
Environment
- Platform (select one):
- Anthropic API
- AWS Bedrock
- Google Vertex AI
- Other:
- Claude CLI version: 1.0.45 (Claude Code)
- Operating System: macOS Sequoia 15.5, Mac Mini M2 Pro
- Terminal: Warp terminal, Claude Code VS Code extension, Cursor.
Bug Description
Steps to Reproduce
- Open any terminal.
- Type in "claude" to start Claude Code.
- Claude Code starts and immediately freezes. Eating up RAM, starting at 300mb and currently at 2gb and counting. It's only been running for 5 minutes...
Expected Behavior
Use Claude Code normally without freezing or leaking.
Actual Behavior
As described: frozen and taking as much memory as possible.
Additional Context
Activity
calves07 commentedon Jul 10, 2025
Also noticed this. I couldn't type anything. Tried opening two or three more tabs. Shortly after, noticed my MacBook was super hot, fans making noise which is very rare and I had 4 instances of Claude still running in Activity Monitor taking a bunch of resources. This is on 1.0.45. On my other MacBook running 1.0.44 it works fine.
rennf93 commentedon Jul 10, 2025
#3189 (comment)
Mitigated the issue by downgrading to 1.0.44. Will stay tuned for updates.
By the way, have you tried any of the other versions like 1.0.48? Just curious
rboyce-ant commentedon Jul 10, 2025
We pulled v1.0.45 due to this issue. If you run
claude updateit should get you to a working versiontickcode commentedon Jul 14, 2025
Thank you!
github-actions commentedon Aug 8, 2025
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.