#Slack Socket Mode invalid_auth — Bot Token works, App Token fails every attempt (2026.3.28)

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amber ruin
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Running OpenClaw 2026.3.28 on Ubuntu VPS. Slack Socket Mode fails with invalid_auth on every attempt despite: correct Monique app tokens (xoxb + xapp), Socket Mode enabled, connections:write scope, Events enabled with message.channels/groups/im subscriptions, app reinstalled multiple times, fresh tokens after each reinstall. Bot Token works fine — channels resolve. Only Socket Mode auth fails. Not a known-good config issue — tokens confirmed correct via openclaw config get channels.slack. Any guidance appreciated.