openclaw - 💡(How to fix) Fix [Bug][Windows] liveness warning 每120秒触发，event loop delay 卡顿（v2026.4.27） [1 comments, 2 participants]

TL;DR

Downgrade to OpenClaw version 2026.4.22 to potentially resolve the issue.

Guidance

• The issue seems to be related to a version change in OpenClaw, as downgrading to 2026.4.22 resolves the problem.
• The high eventLoopUtilization and eventLoopDelayMaxMs values suggest that the event loop is being blocked or delayed, which could be causing the WebSocket connection to timeout.
• Investigate the differences between OpenClaw versions 2026.4.22 and 2026.4.27 to identify the potential cause of the issue.
• Consider monitoring the event loop utilization and delay metrics to detect similar issues in the future.

Notes

The root cause of the issue is unclear, but it appears to be related to a change in OpenClaw. The fact that a similar issue was reported on macOS with a different symptom (fs.stat storm in microtask queue) suggests that there may be a underlying problem with the library.

Recommendation

Apply workaround: Downgrade to OpenClaw version 2026.4.22, as it has been confirmed to resolve the issue. This will allow you to continue operating while the root cause is investigated and a permanent fix is developed.