diff --git a/scripts/4_World/YALootBoxes_ActionOpen.c b/scripts/4_World/YALootBoxes_ActionOpen.c
index 937e3dd..081498c 100644
--- a/scripts/4_World/YALootBoxes_ActionOpen.c
+++ b/scripts/4_World/YALootBoxes_ActionOpen.c
@@ -38,8 +38,13 @@ class YALB_ActionOpenLootbox : ActionContinuousBase
         return ContinuousInteractActionInput;
     }
 
-    // Only offer the action if: target is our lootbox, it's locked,
-    // and the player is holding a valid key item for it.
+    // Offer the action when the target is our lootbox, it's locked, and the
+    // player is holding *some* item. We deliberately do NOT check the specific
+    // key item here: ActionCondition runs client-side to display the prompt,
+    // but the box-type config (required items) lives in $profile and is loaded
+    // server-side only, so GetTypeDef() is null on clients. The exact key-item
+    // requirement is enforced authoritatively in OnFinishProgressServer; the
+    // proximity "Requires: X" message tells the player what to hold.
     override bool ActionCondition(PlayerBase player, ActionTarget target, ItemBase item)
     {
         YALootBoxes_Base box = YALootBoxes_Base.Cast(target.GetObject());
@@ -49,10 +54,7 @@ class YALB_ActionOpenLootbox : ActionContinuousBase
         ItemBase handItem = player.GetItemInHands();
         if (!handItem) return false;
 
-        YALB_BoxTypeDef def = box.GetTypeDef();
-        if (!def) return false;
-
-        return def.IsValidKeyItem(handItem.GetType());
+        return true;
     }
 
     override int GetDuration(ActionData action_data)
@@ -76,6 +78,15 @@ class YALB_ActionOpenLootbox : ActionContinuousBase
 
         ItemBase handItem = player.GetItemInHands();
 
+        // Authoritative key-item gate (ActionCondition can't do this on the
+        // client - see note there). Wrong/empty item: tell the player what's
+        // needed and bail without rolling.
+        if (!handItem || !def.IsValidKeyItem(handItem.GetType()))
+        {
+            YALB_NotifyPlayer(player, "Requires: " + def.GetRequiredItemsDisplayString());
+            return;
+        }
+
         float roll = Math.RandomFloat01();
         if (roll <= def.openChance)
         {