diff --git a/SAC_LSTM_Bot/docs/campaign_notebook.md b/SAC_LSTM_Bot/docs/campaign_notebook.md
index b0440d0..b0670c5 100644
--- a/SAC_LSTM_Bot/docs/campaign_notebook.md
+++ b/SAC_LSTM_Bot/docs/campaign_notebook.md
@@ -51,6 +51,7 @@ SACLSTM_SAVE_INTERVAL=5 \
 - **2026-08-22 00:12** — Fix: save check moved inside the gradient-step loop, committed `2653671`. Validated: interval=5 save fired ~12 s into a battle.
 - **2026-08-22 00:21:55** — **Launch (final)**: tmux `sac_campaign`, config above. First campaign save on disk at t+54 s; eval #1 on cadence.
 - **2026-08-22 00:30** — HEALTHY checklist passed (see below).
+- **2026-08-22 03:45** — Watch shift 1 (00:34–03:35): liveness flawless (10/10 HEALTHY, zero banners, zip ≤30 s). Learning signal: steady-state eval vs Corners 0–5% with two isolated 10/10 spikes (~01:15) → capability emerged, then lost. Eval-regression intervene threshold fired per #55; intervention DEFERRED to Campaign verdict (#57) — rationale: n=2 evidence, no loss metrics, buffer-loss on restart, run completes ~08:05 anyway. Milestone issue: #58 "Campaign-v1 watch: eval-regression threshold fired — intervention deferred to verdict".
 
 ## Decision-issue index