diff --git a/src/DatabaseServices/Entity/Board.ts b/src/DatabaseServices/Entity/Board.ts
index a36bf12b1..ac98e992c 100644
--- a/src/DatabaseServices/Entity/Board.ts
+++ b/src/DatabaseServices/Entity/Board.ts
@@ -772,6 +772,7 @@ export class Board extends ExtrudeSolid
                 br.ProcessingGroupList = [...this.ProcessingGroupList];
                 br._BoardProcessOption = { ...this._BoardProcessOption };
                 br._CustomNumber = this._CustomNumber;//因为CustomNumber不会刷新绘制,所以拷贝这个
+                br._DrillLock = this._DrillLock;      //!2726 关联切割后的引用实体需要复制这个属性,否则反应器无法更新
 
                 let new2old_edgeMap: number[];
                 //修正排钻边的数据