修复:加工组查看器可能触发的bug

src/UI/Components/Modal/ProcessingGroupModal.tsx

@@ -248,9 +248,7 @@ export class ProcessingGroupModal extends React.Component<{ store: ProcessingGro
                     }
                 }
                 for (let g of removepg)
-                {
                     this.DelGroup(g);
-                }
             }
             //添加
             for (let c of selectedLeftNodeSet)
@@ -346,7 +344,7 @@ export class ProcessingGroupModal extends React.Component<{ store: ProcessingGro
             let childs: ITreeNode[] = []; //板件(实体)节点
             for (let obj of g.Objects)
             {
-                if (obj.IsErase)
+                if (!obj || obj.IsErase)
                     continue;
                 let childnode: ITreeNode;
                 //查看/添加
@@ -579,7 +577,7 @@ export class ProcessingGroupModal extends React.Component<{ store: ProcessingGro
     DelGroup = (g: ProcessingGroupRecord) =>
     {
         for (let objID of g.Objects)
-            if (objID.Object instanceof Board)
+            if (objID?.Object && objID.Object instanceof Board)
                 arrayRemove(objID.Object.ProcessingGroupList, g.Id);
         g.Objects.length = 0;
         g.Erase();
@@ -665,7 +663,7 @@ export class ProcessingGroupModal extends React.Component<{ store: ProcessingGro
                 if (g.Name === c)
                     for (let obj of g.Objects)
                     {
-                        if (obj.IsErase || !(obj.Object instanceof Entity))
+                        if (!obj || obj.IsErase || !(obj.Object instanceof Entity))
                             continue;
                         if (this.props.store.flag && !(this.props.store.checkEnts.includes(obj.Object)))
                             continue;