diff --git a/lib/local_storage/sqflite_localpodcast.dart b/lib/local_storage/sqflite_localpodcast.dart
index 5e66e25..7d60c1b 100644
--- a/lib/local_storage/sqflite_localpodcast.dart
+++ b/lib/local_storage/sqflite_localpodcast.dart
@@ -1058,8 +1058,9 @@ class DBHelper {
   Future<bool> isDownloaded(String url) async {
     var dbClient = await database;
     List<Map> list = await dbClient.rawQuery(
-        "SELECT downloaded FROM Episodes WHERE enclosure_url = ?", [url]);
-    return list.first['downloaded'] == 'ND' ? false : true;
+        "SELECT id FROM Episodes WHERE enclosure_url = ? AND enclosure_url != media_id",
+        [url]);
+    return list.isNotEmpty;
   }
 
   Future<int> saveDownloaded(String url, String id) async {
diff --git a/lib/state/podcast_group.dart b/lib/state/podcast_group.dart
index 6797340..8d67b94 100644
--- a/lib/state/podcast_group.dart
+++ b/lib/state/podcast_group.dart
@@ -150,8 +150,9 @@ class GroupList extends ChangeNotifier {
   SubscribeItem _currentSubscribeItem = SubscribeItem('', '');
   SubscribeItem get currentSubscribeItem => _currentSubscribeItem;
 
-  /// Default false, true if subscribe isolate is created.
   bool _created = false;
+
+  /// Default false, true if subscribe isolate is created.
   bool get created => _created;
 
   /// Add subsribe item
@@ -452,7 +453,6 @@ Future<void> subIsolateEntryPoint(SendPort sendPort) async {
       try {
         p = RssFeed.parse(response.data);
       } catch (e) {
-        print(e);
         sendPort.send([item.title, item.url, 6]);
         await Future.delayed(Duration(seconds: 2));
         sendPort.send([item.title, item.url, 4]);
@@ -567,7 +567,7 @@ Future<void> subIsolateEntryPoint(SendPort sendPort) async {
         }
       }
     } catch (e) {
-      print(e);
+      print('$e confirm');
       sendPort.send([item.title, item.url, 6]);
       await Future.delayed(Duration(seconds: 2));
       sendPort.send([item.title, item.url, 4]);