Bug type

Regression (worked before, now fails)

Beta release blocker

No

Summary

On Windows PowerShell, running openclaw update from version 2026.5.3-1 to newer version, the console output hangs after showing successful package manager update. The update completes successfully (65 seconds) but the console does not return to the prompt.

Steps to reproduce

Bug Description
On Windows PowerShell, running openclaw update from version 2026.5.3-1 to newer version, the console output hangs after showing successful package manager update. The update completes successfully but the console does not return to the prompt.

Steps to Reproduce

1. Run openclaw update on Windows PowerShell
2. Wait for the update to complete

Actual Behavior
Console shows:
Updating OpenClaw...
|
o ✓ Updating via package manager (65.32s)

and then freezes. The process is actually complete (verified by running openclaw --version shows new version), but the prompt never returns.

Expected behavior

Should continue executing health checks and plugin checks after package manager update completes, until the entire update process finishes and returns to the prompt.

Actual behavior

no prompt no active next step

OpenClaw version

2026.5.5

Operating system

windows 11

Install method

openclaw update

Model

minimax

Provider / routing chain

openclaw minimax

Additional provider/model setup details

The update command hangs after npm completes. The process is actually alive (verified by running openclaw --version shows new version after force-terminating the hung process), suggesting the issue is with console output flushing or the subsequent health check phase on Windows PowerShell.

Logs, screenshots, and evidence

Impact and severity

No response

Additional information

No response