diff --git a/ogWebconsole/src/app/components/groups/groups.component.ts b/ogWebconsole/src/app/components/groups/groups.component.ts
index 6560654..b7d54d8 100644
--- a/ogWebconsole/src/app/components/groups/groups.component.ts
+++ b/ogWebconsole/src/app/components/groups/groups.component.ts
@@ -352,6 +352,12 @@ export class GroupsComponent implements OnInit, OnDestroy {
   }
 
   private refreshOrganizationalUnits(): void {
+    const expandedNodeIds = this.treeControl.dataNodes
+      ? this.treeControl.dataNodes
+          .filter(node => this.treeControl.isExpanded(node))
+          .map(node => this.extractUuid(node['@id']))
+      : [];
+  
     this.subscriptions.add(
       this.dataService.getOrganizationalUnits().subscribe(
         (data) => {
@@ -362,6 +368,15 @@ export class GroupsComponent implements OnInit, OnDestroy {
               const treeData = this.convertToTreeData(updatedData);
               this.originalTreeData = treeData[0]?.children || [];
               this.treeDataSource.data = [...this.originalTreeData];
+  
+              setTimeout(() => {
+                this.treeControl.dataNodes.forEach(node => {
+                  const nodeId = this.extractUuid(node['@id']);
+                  if (nodeId && expandedNodeIds.includes(nodeId)) {
+                    this.treeControl.expand(node);
+                  }
+                });
+              });
             });
           }
         },
@@ -369,6 +384,7 @@ export class GroupsComponent implements OnInit, OnDestroy {
       )
     );
   }
+  
 
   onEditNode(event: MouseEvent, node: TreeNode | null): void {
     event.stopPropagation();