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openclaw - 💡(How to fix) Fix [Bug]: openclaw-weixin personal account: assistant replies undelivered when session goes cold (context token stale)

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On OpenClaw 2026.5.6 (Windows), with openclaw-weixin channel using a personal WeChat account (ot_type=3), assistant replies to user messages stop being delivered once the conversation goes idle for a period of time.

  • In-session replies (user sends a message, AI responds within minutes) -> delivered correctly
  • Delayed replies (user sends a message, AI takes 30min+ to respond) -> sometimes not delivered
  • Out-of-session / proactive messages -> never delivered

The system reports delivery: pending or delivered: true, but the message never appears on WeChat.

Root Cause

On OpenClaw 2026.5.6 (Windows), with openclaw-weixin channel using a personal WeChat account (ot_type=3), assistant replies to user messages stop being delivered once the conversation goes idle for a period of time.

  • In-session replies (user sends a message, AI responds within minutes) -> delivered correctly
  • Delayed replies (user sends a message, AI takes 30min+ to respond) -> sometimes not delivered
  • Out-of-session / proactive messages -> never delivered

The system reports delivery: pending or delivered: true, but the message never appears on WeChat.

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Bug type

Behavior bug (incorrect output/state without crash)

Summary

On OpenClaw 2026.5.6 (Windows), with openclaw-weixin channel using a personal WeChat account (ot_type=3), assistant replies to user messages stop being delivered once the conversation goes idle for a period of time.

  • In-session replies (user sends a message, AI responds within minutes) -> delivered correctly
  • Delayed replies (user sends a message, AI takes 30min+ to respond) -> sometimes not delivered
  • Out-of-session / proactive messages -> never delivered

The system reports delivery: pending or delivered: true, but the message never appears on WeChat.

Environment

  • OpenClaw: 2026.5.6 (c97b9f7)
  • Node: v24.15.0
  • OS: Windows 10.0.26200 (x64)
  • Install: npm global
  • Gateway: local
  • Channel: openclaw-weixin (plugin: @tencent-weixin/openclaw-weixin)
  • Account type: Personal WeChat (bot_type=3)
  • Account ID: 3c947a6d5e9d-im-bot

Reproduction

  1. Start a conversation with the AI via openclaw-weixin (personal WeChat account)
  2. Exchange several messages normally ??all replies arrive
  3. Wait 30-60 minutes without sending any messages
  4. Have the AI attempt to send a message proactively (e.g., "ni hao" via sessions_send)
  5. Result: Gateway reports success, but the message never arrives on WeChat

CLI test result

openclaw message send --channel openclaw-weixin --target "o9cq80_..." --account "3c947a6d5e9d-im-bot" --message "test"

  • Works when conversation is active
  • Fails when cold: "weixin: cannot determine which account to use (2 accounts registered, none has an active session)"

Expected behavior

Assistant replies that use the same session/conversation context should be delivered to the user's WeChat regardless of whether the conversation is currently active. If context token expires, the system should refresh it automatically.

Related issues

  • #79753 (same symptom, still open)
  • #68805 (confirmed same symptom, closed as not reproducible after it mysteriously started working)
  • #78532 (deliverySucceeded=true when no adapter was invoked)

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FAQ

Expected behavior

Assistant replies that use the same session/conversation context should be delivered to the user's WeChat regardless of whether the conversation is currently active. If context token expires, the system should refresh it automatically.

#logging issue#authentication issue#prompt issue#agent setup#task chaining

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openclaw - 💡(How to fix) Fix [Bug]: openclaw-weixin personal account: assistant replies undelivered when session goes cold (context token stale)