Untrapped TERM skipped the EXIT trap and left the channel dark once; now signals exit through the trap. The YouTube-side capture wedges on a stale HLS manifest after the swap's ingest gap — the rig-side measurement (same inputs, same encoder, no YouTube) is the reliable A/V number: 2026-09-01 baseline −65ms audio-early, corrected with AV_OFFSET=0.065 in both station envs. Claude-Session: https://claude.ai/code/session_01EaVptJ3ZhyeQ9ZZZNcp55T