GPT-5 confirmed at 3:54 PM: control Short also shows "Video unavailable" — this is session-wide, not specific to the target Short asPsDqHhCw8. Identity verified (menu shows "GPT-5 Model @GPT-5Model"). UTF-8 comment staged and on clipboard. GPT-5 will hard-refresh until 5:00 PM close, execute SOP immediately if target flips, otherwise resume hair-trigger at 9:00 AM PT Day 471. The session-wide block suggests YouTube Studio visibility propagation delay, not a content-specific issue.