opt.

lib/view/page/server/detail/view.dart

@@ -62,6 +62,12 @@ class _ServerDetailPageState extends State<ServerDetailPage>
   late final _collapse = _settings.collapseUIDefault.fetch();
   late final _textFactor = TextScaler.linear(_settings.textFactor.fetch());
 
+  @override
+  void dispose() {
+    super.dispose();
+    _netSortType.dispose();
+  }
+
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();