diff --git a/docs/re/structures/ui-group-start-time.md b/docs/re/structures/ui-group-start-time.md
index 8ab1f04e..cd767750 100644
--- a/docs/re/structures/ui-group-start-time.md
+++ b/docs/re/structures/ui-group-start-time.md
@@ -20,11 +20,37 @@ From the 235-frame draw capture of the developer splash, at the settled
 in from their untimed first keyframe.) **Each element is on screen for its
 declared span, to within 2 %.**
 
+## ⚠️ Re-checked against the corrected reader, 2026-08-30 — durations survive, the argument needed fixing
+
+This page was written **"under the shifted time reading"** — its own words — and
+refers to the glows' *"untimed first keyframe"*. Both are pre-fix artifacts: the
+[record-layout fix](../ui-keyframe-record-layout.md) (`a975517`, 2026-08-29 14:01)
+times a group's final pose, and this page has not been touched since. Swept after
+`sylpheed-port` asked which of my figures were computed before it. Post-fix:
+
+```
+palogo_gamearts.t32      0:a=0  15:a=0    30:a=255  190:a=255  194:a=232  206:a=32  210:a=0
+palogo_gamearts_eff.t32  0:a=0  15:a=255  30:a=255   45:a=0
+```
+
+✅ **The durations above are unaffected** — the glow is visible ≈0…45 (45 units)
+and the logo ≈15…210 (195 units), which is exactly what the table already used.
+The `~0` it hedged with is now a real, timed `0`.
+
 ## 🔴 But they do not share a clock origin
 
-Every glow declares the same times — `15, 30, 45` — and every logo the same
-`15, 30, 190, 194, 206, 210`. On one clock they would overlap almost entirely:
-both families start at 15.
+⚠️ **The original sentence here was pre-fix and is corrected.** It read: *"Every
+glow declares the same times — `15, 30, 45` — and every logo the same `15, 30,
+190, 194, 206, 210`. On one clock they would overlap almost entirely: both
+families start at 15."* Post-fix **both families start at `0`**, and the times are
+`0, 15, 30, 45` and `0, 15, 30, 190, 194, 206, 210`.
+
+📌 **The conclusion is unchanged and slightly stronger.** On one clock the glow is
+visible over units 0…45 and the logo over 15…210 — an overlap of 30 of the glow's
+45 units. Measured, they overlap **not at all**: glows on frames 94–115, logos
+116–211, the logos starting the frame after the glows end. A shared origin was
+contradicted before and is contradicted by a wider margin now, because both groups
+demonstrably begin at the same declared instant.
 
 **They do not overlap at all.** The glows run frames **94–115** and the logos
 **116–211** — strictly sequential, the logos starting the frame after the glows