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src/components/MultiSourceCaptioningView.tsx

@@ -31,18 +31,33 @@ function normalizeBoxes(raw: any): { label: string, bbox_2d: number[] }[] {
     .filter((obj: any) => obj && obj.bbox_2d)
     .map((obj: any) => {
       let bbox = obj.bbox_2d;
+      // Accept [x1, y1, x2, y2]
+      if (
+        Array.isArray(bbox) &&
+        bbox.length === 4 &&
+        bbox.every((v: any) => typeof v === "number")
+      ) {
+        // Already in [x1, y1, x2, y2] format
+        return { ...obj, bbox_2d: bbox };
+      }
+      // Accept [[x1, y1], [x2, y2]]
       if (
         Array.isArray(bbox) &&
         bbox.length === 2 &&
         Array.isArray(bbox[0]) &&
         Array.isArray(bbox[1]) &&
         bbox[0].length === 2 &&
-        bbox[1].length === 2
+        bbox[1].length === 2 &&
+        bbox[0].every((v: any) => typeof v === "number") &&
+        bbox[1].every((v: any) => typeof v === "number")
       ) {
         bbox = [bbox[0][0], bbox[0][1], bbox[1][0], bbox[1][1]];
+        return { ...obj, bbox_2d: bbox };
       }
-      return { ...obj, bbox_2d: bbox };
-    });
+      // Fallback: skip invalid bbox
+      return null;
+    })
+    .filter((obj: any) => obj && Array.isArray(obj.bbox_2d) && obj.bbox_2d.length === 4 && obj.bbox_2d.every((v: any) => typeof v === "number"));
 }
 
 function isImageFile(file: File) {