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[Bug]: v2026.5.18: Telegram plain-text outbound dispatch silently fails after memory-pressure event; survives docker restart; cron and slash-command paths still work #84129

Description

@nik-greek

Bug type

Regression (worked before, now fails)

Beta release blocker

No

Summary

Telegram plain-text outbound dispatch silently fails after memory-pressure event; survives docker restart; cron and slash-command paths still work

Steps to reproduce

issue-bundle-v518-wedge-20260519T125916Z.tar.gz

Expected behavior

Answer to text in telegram

Actual behavior

Bot is silent

OpenClaw version

2026.5.18

Operating system

Ubuntu on VPS

Install method

No response

Model

chat gpt 5.5

Provider / routing chain

openclaw -> openclaw-codex 2026.5.18 -> chatgpt-pro-oauth -> openai/codex-app-server (gpt-5.5)

Additional provider/model setup details

No response

Logs, screenshots, and evidence

Impact and severity

No response

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    P1High-priority user-facing bug, regression, or broken workflow.bugSomething isn't workingclawsweeper:fix-shape-clearClawSweeper found a clear likely implementation shape for this issue.clawsweeper:needs-maintainer-reviewClawSweeper marked this issue as needing maintainer review before automation.clawsweeper:needs-product-decisionClawSweeper marked this issue as needing a product or behavior decision.clawsweeper:no-new-fix-prClawSweeper does not recommend queueing a new automated fix PR for this issue.clawsweeper:source-reproClawSweeper found a high-confidence source-level issue reproduction.impact:message-lossChannel message delivery can be lost, duplicated, or misrouted.issue-rating: 🦞 diamond lobsterVery strong issue quality with high-confidence source-level or clear reproduction.regressionBehavior that previously worked and now fails

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