[BUG] ClaudeCode v1.0.45 hangs when CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC is set
Resolved 💬 20 comments Opened Jul 8, 2025 by damien-king Closed Jul 17, 2025
💡 Likely answer: A maintainer (ashwin-ant, collaborator)
responded on this thread — see the highlighted reply below.
Environment
- Platform (select one):
- [ ] Anthropic API
- [x] AWS Bedrock
- [ ] Google Vertex AI
- [ ] Other: <!-- specify -->
- Claude CLI version:1.0.45
- Operating System: macOS 15.1, Ubuntu 22.0.4
- Terminal: VSCode terminal, terminal app
Bug Description
When using bedrock, CC immediately hangs on launch and is unresponsive (no keyboard input or ctrl + c etc.) This is not an issue using an Anthropic Max account (I haven't tried Anthropic API key).
Hangs at:
╭───────────────────────────────────────────────────╮
│ ✻ Welcome to Claude Code! │
│ │
│ /help for help, /status for your current setup │
│ │
│ cwd: /Volumes/External/Playground/altec │
╰───────────────────────────────────────────────────╯
※ Tip: Cmd+Escape to launch Claude in your IDE
╭────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ > Try "how does __init__.py work?" │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
? for shortcuts ◯ IDE disconnected < Steps to Reproduce
- Set env (example only, use your own env):
export CLAUDE_CODE_USE_BEDROCK=1
export AWS_REGION=us-east-1
export AWS_PROFILE=dev
export ANTHROPIC_MODEL='us.anthropic.claude-sonnet-4-20250514-v1:0'- run claude
Expected Behavior
Normal usage
Actual Behavior
terminal input is frozen and cannot use CC.
Additional Context
In VSCode IDE always shows as disconnected but the behaviour in terminal and IDE is identical. I've tried disabling all MCP with no change to behavior.
20 Comments
I can reliably reproduce this in version 1.0.45 (released ~25 mins ago). The error goes away when downgrading.
Confirm.
@damien-king — To clarify, I'm not using Bedrock. This issue happens on the $100/mo Claude plan as well.
Thanks, oddly I'm also using the $100 account on the same install (in a different terminal session) and it works fine for me, it's just when applying the Bedrock env that I see the hang.
If you downgrade to 1.0.44, when you reopen it for a while, it will run auto-updating.
Ah, that's odd. I'm about to type a few characters and then it freezes up. I've tried clearing my config files, uninstalling, reinstalling, restarting my computer, and everything I could think of. I also removed the MCP servers but that didn't help.
I also ran
claude -dbut there were no obvious issues in the logs.@hirale — You can run
DISABLE_AUTOUPDATER=1 claudein the meantime to prevent auto-update.I can confirm downgrading to 1.0.44 and setting the DISABLE_AUTOUPDATER workaround the issue for now.
I'm not on the 100 plan and am just using the console API account and also get a hang after a few seconds on 1.0.45, also confirmed 1.0.44 works
If you run with
claude --debugcan you share the output?Also run into the same issue as long as
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1is set@ashwin-ant There's nothing unusal in the debug logs.
Thanks for the reports everyone. We've paused the rollout of 1.0.45 as the default latest version as we investigate. Please downgrade to 1.0.44 if you are encountering this issue.
It also happens on Google Vertex AI, it might not depend on the platform. Therefore, I downgrade to 1.0.44.
This was actually happening for me on 1.0.44, and only seems to have stopped after I ran
claude updateand got 45 10 mins ago.For me, it was responsive for a few seconds, perhaps up to 5s. Then hung so hard nothing would save the shell short of Cmd + W.
I'm on my 2022 M2 MBA and on Max.
We've identified the root cause and it was a regression in 1.0.45. We have a fix in place in 1.0.46, but for now we've marked 1.0.44 as the latest version so no one should get auto-updated.
FYI: Running claude update downgrades to 1.0.44 now and that seems to work again for me.
Having the same issue with 1.0.45, but bumping the version back down to 1.0.44 works normally.
Had the same issue today. Not sure why it upgraded to v1.0.45 but it's currently broken. Downgrading to v1.0.44 works as many other have reported.
@markdrake you should be able to upgrade past 1.0.45 now. 1.0.55 is the latest version.
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.