diff --git a/mnemo_cards_backend/lib/api/v2/admin_cards_api_v2.dart b/mnemo_cards_backend/lib/api/v2/admin_cards_api_v2.dart
index 8928e40..e2c3d93 100644
--- a/mnemo_cards_backend/lib/api/v2/admin_cards_api_v2.dart
+++ b/mnemo_cards_backend/lib/api/v2/admin_cards_api_v2.dart
@@ -867,6 +867,7 @@ class AdminCardsApiV2 {
       final objectId = requestDto.voiceUrl;
 
       // Create voice record with object ID
+      print('🔍 addCardVoice: Creating voice record with objectId $objectId for card $cardId');
       final voiceId = await _db.packDao.createVoice(
         VoiceModelsCompanion.insert(
           cardId: cardId,
@@ -874,9 +875,12 @@ class AdminCardsApiV2 {
           language: requestDto.language ?? 'en',
         ),
       );
+      print('✅ addCardVoice: Created voice record with id $voiceId');
 
       // Link voice to card
+      print('🔍 addCardVoice: Linking voice $voiceId to card $cardId');
       await _db.packDao.addVoiceToCard(cardId, voiceId);
+      print('✅ addCardVoice: Successfully linked voice $voiceId to card $cardId');
 
       final voice = await _db.packDao.getVoiceById(voiceId);
 
diff --git a/mnemo_cards_backend/lib/api/v2/packs_api_v2.dart b/mnemo_cards_backend/lib/api/v2/packs_api_v2.dart
index a30e30b..4d4a3b4 100644
--- a/mnemo_cards_backend/lib/api/v2/packs_api_v2.dart
+++ b/mnemo_cards_backend/lib/api/v2/packs_api_v2.dart
@@ -628,7 +628,9 @@ class PacksApiV2 {
 
       // Get voices for card
       final voices = await _db.packDao.getCardVoices(cardId);
+      print('🔍 getCardVoices: Found ${voices.length} voices for card $cardId');
       if (voices.isEmpty) {
+        print('⚠️ getCardVoices: No voices found for card $cardId');
         return _ok({'items': <Map<String, Object?>>[]});
       }
 
diff --git a/mnemo_cards_backend/lib/database/daos/pack_dao.dart b/mnemo_cards_backend/lib/database/daos/pack_dao.dart
index 72151af..47c5028 100644
--- a/mnemo_cards_backend/lib/database/daos/pack_dao.dart
+++ b/mnemo_cards_backend/lib/database/daos/pack_dao.dart
@@ -281,6 +281,17 @@ class PackDao extends DatabaseAccessor<AppDatabase> with _$PackDaoMixin {
   
   /// Получить голосовые модели карточки
   Future<List<VoiceModel>> getCardVoices(String cardId) async {
+    print('🔍 DAO getCardVoices: Querying voices for card $cardId');
+    
+    // First, check if there are any voices in CardVoices table for this card
+    final countExpr = cardVoices.cardId.count();
+    final countQuery = selectOnly(cardVoices)
+      ..addColumns([countExpr])
+      ..where(cardVoices.cardId.equals(cardId));
+    final countResult = await countQuery.getSingle();
+    final count = countResult.read(countExpr) ?? 0;
+    print('🔍 DAO getCardVoices: Found $count entries in CardVoices table for card $cardId');
+    
     final query = select(voiceModels).join([
       innerJoin(
         cardVoices,
@@ -289,18 +300,28 @@ class PackDao extends DatabaseAccessor<AppDatabase> with _$PackDaoMixin {
       ),
     ]);
     
-    return query.map((row) => row.readTable(voiceModels)).get();
+    final result = await query.map((row) => row.readTable(voiceModels)).get();
+    print('🔍 DAO getCardVoices: Query returned ${result.length} voices');
+    
+    return result;
   }
   
   /// Добавить голосовую модель к карточке
   Future<void> addVoiceToCard(String cardId, String voiceId) async {
-    await into(cardVoices).insert(
-      CardVoicesCompanion.insert(
-        cardId: cardId,
-        voiceId: voiceId,
-      ),
-      mode: InsertMode.insertOrIgnore,
-    );
+    print('🔍 DAO addVoiceToCard: Linking voice $voiceId to card $cardId');
+    try {
+      await into(cardVoices).insert(
+        CardVoicesCompanion.insert(
+          cardId: cardId,
+          voiceId: voiceId,
+        ),
+        mode: InsertMode.insertOrIgnore,
+      );
+      print('✅ DAO addVoiceToCard: Successfully linked voice $voiceId to card $cardId');
+    } catch (e) {
+      print('❌ DAO addVoiceToCard: Error linking voice $voiceId to card $cardId: $e');
+      rethrow;
+    }
   }
   
   /// Удалить голосовую модель из карточки