diff --git a/src/Production/Product.ts b/src/Production/Product.ts
index 6cda0c167..608d2a6e8 100644
--- a/src/Production/Product.ts
+++ b/src/Production/Product.ts
@@ -525,6 +525,7 @@ export namespace Production
             if (b.__OriginalEnt__)
             {
                 b.BoardProcessOption = en.BoardProcessOption;
+                b.ProcessingGroupList = en.ProcessingGroupList;
                 for (let [k, ds] of en.DrillList)
                     b.AppendDrillList(k, ds);
                 b.AppendNails(en.LayerNails);