diff --git a/apps/course/serializers/admin.py b/apps/course/serializers/admin.py
index 3603fc0..2feb4f6 100644
--- a/apps/course/serializers/admin.py
+++ b/apps/course/serializers/admin.py
@@ -1,4 +1,4 @@
-from rest_framework import serializers
+from rest_framework import serializers
 from utils import FileFieldSerializer, get_thumbs
 from apps.course.models import (
     Course,
@@ -185,12 +185,8 @@ class AdminCourseDetailSerializer(serializers.ModelSerializer):
     def to_representation(self, instance):
         ret = super().to_representation(instance)
         lang = get_request_lang(self)
-        ret['title'] = get_localized_field(lang, instance.title)
-        ret['slug'] = get_localized_field(lang, instance.slug)
-        ret['level'] = get_localized_field(lang, instance.level)
-        ret['status'] = get_localized_field(lang, instance.status)
-        ret['timing'] = get_localized_field(lang, instance.timing)
-        ret['features'] = get_localized_field(lang, instance.features)
+        # Keep raw JSON values here so the admin form can edit all language variants,
+        # matching the blog admin flow.
         return ret
 
 
@@ -519,3 +515,4 @@ class AdminLiveSessionDetailSerializer(serializers.ModelSerializer):
             return ""
         lang = get_request_lang(self)
         return get_localized_field(lang, obj.course.title)
+
diff --git a/apps/course/serializers/course.py b/apps/course/serializers/course.py
index 43a95eb..0e4ca39 100644
--- a/apps/course/serializers/course.py
+++ b/apps/course/serializers/course.py
@@ -5,6 +5,8 @@ from apps.course.models import Course, CourseCategory, Attachment, Glossary, Les
 from apps.course.models.course import get_localized_field
 from apps.chat.models import RoomMessage
 from apps.account.serializers import UserProfileSerializer
+import ast
+import json
 
 
 
@@ -413,25 +415,62 @@ class CourseDetailSerializer(serializers.ModelSerializer):
     def get_status(self, obj):
         return get_localized_field(self._lang(), obj.status)
 
+    def _parse_builder_payload(self, value):
+        if value is None:
+            return None
+        if isinstance(value, str):
+            for parser in (json.loads, ast.literal_eval):
+                try:
+                    parsed = parser(value)
+                    return parsed
+                except Exception:
+                    continue
+            return value
+        return value
+
+    def _extract_builder_list(self, value):
+        """
+        Return the raw builder list for the current language.
+        Supports both:
+        - direct lists like [{'day': 'monday', 'timing': '12:22'}, ...]
+        - multilingual wrappers like [{'language_code': 'en', 'title': "[...]"}, ...]
+        """
+        parsed = self._parse_builder_payload(value)
+        if parsed is None:
+            return []
+
+        if isinstance(parsed, list) and parsed:
+            if all(isinstance(item, dict) and 'language_code' in item for item in parsed):
+                current_lang = self._lang()
+                selected = next(
+                    (
+                        item for item in parsed
+                        if isinstance(item, dict) and item.get('language_code') == current_lang
+                    ),
+                    parsed[0],
+                )
+                parsed = self._parse_builder_payload(
+                    selected.get('title')
+                    or selected.get('text')
+                    or selected.get('value')
+                    or selected.get('name')
+                    or []
+                )
+
+        if isinstance(parsed, list):
+            return parsed
+        if isinstance(parsed, dict):
+            if isinstance(parsed.get('list'), list):
+                return parsed['list']
+            if isinstance(parsed.get('items'), list):
+                return parsed['items']
+        return []
+
     def get_timing(self, obj):
-        import json
-        val = get_localized_field(self._lang(), obj.timing)
-        if isinstance(val, str):
-            try:
-                return json.loads(val)
-            except Exception:
-                pass
-        return val
+        return self._extract_builder_list(obj.timing)
 
     def get_features(self, obj):
-        import json
-        val = get_localized_field(self._lang(), obj.features)
-        if isinstance(val, str):
-            try:
-                return json.loads(val)
-            except Exception:
-                pass
-        return val
+        return self._extract_builder_list(obj.features)
 
 
     
@@ -594,4 +633,4 @@ class CourseGlossarySerializer(serializers.ModelSerializer):
         return getattr(request, 'LANGUAGE_CODE', None) or 'en'
 
     def get_description(self, obj):
-        return get_localized_field(self._lang(), obj.glossary.description)
\ No newline at end of file
+        return get_localized_field(self._lang(), obj.glossary.description)