Bug

When a user sends two messages in a Slack thread before the bot has replied to the first, the bot's reply to the second message sometimes goes to the main channel instead of staying in the thread.

Expected behavior

Both replies should stay in the thread, regardless of how many messages arrive before the bot responds.

Actual behavior

The first reply goes to the correct thread. The second reply escapes to the main channel as a top-level message.

Config

"replyToMode": "all"

Threading is set to all, so all replies should be threaded. The issue appears to be a concurrency/queueing edge case where the second queued response loses its thread_ts context during dispatch.

Steps to reproduce

1. Open a Slack channel with Moltbot connected (replyToMode: "all")
2. Start a thread
3. Send two messages in quick succession (before bot replies to the first)
4. Observe: first reply → thread ✅, second reply → main channel ❌

Environment

• Moltbot version: 2026.1.27-beta.1
• Channel: Slack (socket mode)
• OS: macOS (Apple Silicon)