A ticket appears on its creation day and again on a later UTC day when Support reopens it or the nightly fail-rate triage reuses, wakes, or links it — even if it stayed open with no done→active transition. Scan flags without an issue action do not add a ticket. Color is detection source (fail-rate stays orange; green is customer-traffic only), not health. Solid means done now, pale means open now, and gray means cancelled now.