openclaw - 💡(How to fix) Fix Telegram forum topic sessions intermittently stop responding while DM sessions continue working

Summary

Telegram forum topic (group thread) sessions intermittently stop responding to messages while the main DM session continues to work fine. The session works for a period, then stops replying. Messages show only one checkmark (delivered to Telegram servers) but no response is generated.

Environment

• OpenClaw version: 2026.5.7
• Platform: macOS 26.2 (arm64)
• Node: 22.22.0
• Agent runtime: claude-cli
• Model: claude-opus-4-7

Configuration

Forum topic is configured in channels.telegram.groups:

"-1003964751155": {
  "requireMention": false,
  "groupPolicy": "open",
  "topics": {
    "13": {
      "requireMention": false
    }
  }
}

Observed behavior

1. Messages to the forum topic work initially
2. After some time (variable), replies stop
3. DM messages to the same bot continue to work
4. Gateway logs show no explicit errors
5. openclaw status --deep shows the group session exists but may be stale
6. Last successful send to forum topic was May 4; DMs continued working after that
7. Gateway was restarted multiple times (May 5-6) with reasons like "Clear stuck forum topic session" and "Reset stuck forum topic session"

Expected behavior

Forum topic sessions should continue responding reliably, or automatically recover when stuck.

Relevant log patterns

• Multiple cli session reset: provider=claude-cli reason=system-prompt events (session invalidation when workspace files change)
• No session.stuck or session.stalled warnings logged for the group session
• Group session shows in status as agent:main:telegram:group:-1003964751155

Questions

1. Is there a known issue with forum topic session lifecycle?
2. Should stuck session recovery (diagnostics.stuckSessionWarnMs) be detecting and recovering this automatically?
3. Is there a recommended configuration for more reliable forum topic sessions?

Diagnostics

Diagnostics bundle exported: openclaw-diagnostics-2026-05-08T21-37-56-812Z-96106.zip

Can provide additional logs or config details as needed.