diff --git a/fifa17-recon/docs/CARD_SYSTEM.md b/fifa17-recon/docs/CARD_SYSTEM.md
index 0341863..3bbdaa5 100644
--- a/fifa17-recon/docs/CARD_SYSTEM.md
+++ b/fifa17-recon/docs/CARD_SYSTEM.md
@@ -370,3 +370,30 @@ empty. The diagnostic that worked every time was reading the CardsDb map: if the
 client ingested nothing, the shape is wrong; if it ingested records that do not draw,
 the failure is downstream. Guessing between those two costs a human a menu trip each
 time; the probe costs 0.03 seconds.
+
+## The green box, and why two guesses missed it
+
+CONFIRMED FIXED 2026-08-05. Consumable cards draw real artwork once cardassetid
+carries the ART id from the fcc_ tables (training 3, contract 7, healing 10, misc 45)
+instead of a copy of the resourceId. The placeholder was
+external/ion_fut/artAssets/.../notfound.swf, the client's stand-in for art it cannot
+resolve.
+
+The two wrong guesses are recorded because the reasoning behind each was plausible:
+
+  1. "It is the untradeable badge." The deserializer really does set a UI flag from
+     (untradeableCount < count) and UNTRADEABLE_COUNT really is a state key. Changing
+     it flipped the flag in the live record (+0x49 went to 1) and the tag did not
+     move. Refuted by measurement, not by argument.
+  2. "It is an untranslated loc key." Also wrong: the string NOT FOUND does not exist
+     anywhere in cardsdll.dll, in any casing.
+
+What settled it was reading the badge TEXT off an unobstructed screenshot. "NOT FOUND"
+is not a status, it is a missing-asset placeholder, and that turned a UI question into
+an id question. The lesson is the cheap one: get the exact on-screen string before
+theorising about what produces it.
+
+THE TRAP GENERALISES. An fcc_ row carries BOTH carddbid and cardassetid and they are
+not interchangeable. fut_store._item copies resourceId into cardassetid, which is
+correct for players and wrong for every other family. The club-item family will need
+the same mapping: balls 37, kits 35, stadium 36, badges 39, league logos 40.