diff --git a/app/Console/Tasks/VodEventTask.php b/app/Console/Tasks/VodEventTask.php
index 0189960b..49d86fc7 100644
--- a/app/Console/Tasks/VodEventTask.php
+++ b/app/Console/Tasks/VodEventTask.php
@@ -45,7 +45,8 @@ class VodEventTask extends Task
     protected function handleNewFileUploadEvent($event)
     {
         $fileId = $event['FileUploadEvent']['FileId'];
-        $format = $event['FileUploadEvent']['MediaBasicInfo']['Type'];
+        $width = $event['FileUploadEvent']['MetaData']['Height'];
+        $height = $event['FileUploadEvent']['MetaData']['Width'];
         $duration = $event['FileUploadEvent']['MetaData']['Duration'];
 
         $chapterRepo = new ChapterRepo();
@@ -56,7 +57,7 @@ class VodEventTask extends Task
 
         $vodService = new VodService();
 
-        if ($this->isAudioFile($format)) {
+        if ($width == 0 && $height == 0) {
             $vodService->createTransAudioTask($fileId);
         } else {
             $vodService->createTransVideoTask($fileId);
@@ -144,13 +145,6 @@ class VodEventTask extends Task
         return $vodService->confirmEvents($handles);
     }
 
-    protected function isAudioFile($format)
-    {
-        $formats = ['mp3', 'm4a', 'wav', 'flac', 'ogg'];
-
-        return in_array(strtolower($format), $formats);
-    }
-
     protected function updateVodAttrs(ChapterModel $chapter)
     {
         $courseStats = new CourseStatService();
diff --git a/app/Http/Admin/Services/Chapter.php b/app/Http/Admin/Services/Chapter.php
index de9372e4..5a387d95 100644
--- a/app/Http/Admin/Services/Chapter.php
+++ b/app/Http/Admin/Services/Chapter.php
@@ -78,6 +78,7 @@ class Chapter extends Service
             $data['parent_id'] = $parent->id;
             $data['free'] = $validator->checkFreeStatus($post['free']);
             $data['priority'] = $chapterRepo->maxLessonPriority($post['parent_id']);
+            $parentId = $parent->id;
         } else {
             $data['priority'] = $chapterRepo->maxChapterPriority($post['course_id']);
             $data['parent_id'] = $parentId;
@@ -120,7 +121,7 @@ class Chapter extends Service
                 }
 
                 if ($attrs === false) {
-                    throw new \RuntimeException("Create Chapter {$course->model} Attrs Failed");
+                    throw new \RuntimeException("Create Chapter Related Attrs Failed");
                 }
             }
 
diff --git a/app/Http/Admin/Services/ChapterContent.php b/app/Http/Admin/Services/ChapterContent.php
index f02962d1..09fccf37 100644
--- a/app/Http/Admin/Services/ChapterContent.php
+++ b/app/Http/Admin/Services/ChapterContent.php
@@ -81,10 +81,20 @@ class ChapterContent extends Service
 
         $vod = $chapterRepo->findChapterVod($chapter->id);
 
+        /**
+         * 无新文件上传
+         */
         if ($fileId == $vod->file_id) {
             return;
         }
 
+        /**
+         * 删除旧文件
+         */
+        if ($vod->file_id) {
+            $this->deleteVodFile($vod->file_id);
+        }
+
         $vod->update([
             'file_id' => $fileId,
             'file_transcode' => '',
@@ -102,10 +112,6 @@ class ChapterContent extends Service
         $chapter->update(['attrs' => $attrs]);
 
         $this->updateCourseVodAttrs($vod->course_id);
-
-        if (!empty($vod->file_id)) {
-            $this->deleteVodFile($vod->file_id);
-        }
     }
 
     protected function updateChapterLive(ChapterModel $chapter)
diff --git a/app/Http/Admin/Views/course/list.volt b/app/Http/Admin/Views/course/list.volt
index 450a3641..b4ed45a7 100644
--- a/app/Http/Admin/Views/course/list.volt
+++ b/app/Http/Admin/Views/course/list.volt
@@ -9,6 +9,8 @@
             <span class="layui-badge layui-bg-blue">直播</span>
         {% elseif value == 3 %}
             <span class="layui-badge layui-bg-black">专栏</span>
+        {% else %}
+            <span class="layui-badge layui-bg-gray">未知</span>
         {% endif %}
     {%- endmacro %}
 
@@ -22,19 +24,21 @@
             中级
         {% elseif value == 4 %}
             高级
+        {% else %}
+            未知
         {% endif %}
         </span>
     {%- endmacro %}
 
     {%- macro category_info(category) %}
-        {% if category %}
+        {% if category.id is defined %}
             {% set url = url({'for':'admin.course.list'},{'category_id':category.id}) %}
             分类：<a class="layui-badge layui-bg-gray" href="{{ url }}">{{ category.name }}</a>
         {% endif %}
     {%- endmacro %}
 
     {%- macro teacher_info(teacher) %}
-        {% if teacher %}
+        {% if teacher.id is defined %}
             {% set url = url({'for':'admin.course.list'},{'teacher_id':teacher.id}) %}
             讲师：<a class="layui-badge layui-bg-gray" href="{{ url }}">{{ teacher.name }}</a>
         {% endif %}
diff --git a/app/Http/Admin/Views/im/group/list.volt b/app/Http/Admin/Views/im/group/list.volt
index 6570f894..7934d5b4 100644
--- a/app/Http/Admin/Views/im/group/list.volt
+++ b/app/Http/Admin/Views/im/group/list.volt
@@ -9,11 +9,13 @@
             <span class="layui-badge layui-bg-blue">聊</span>
         {% elseif value == 3 %}
             <span class="layui-badge layui-bg-cyan">职</span>
+        {% else %}
+            <span class="layui-badge layui-bg-gray">未知</span>
         {% endif %}
     {%- endmacro %}
 
     {%- macro owner_info(owner) %}
-        {% if owner %}
+        {% if owner.id is defined %}
             {{ owner.name }}（{{ owner.id }}）
         {% else %}
             未设置
diff --git a/scheduler.php b/scheduler.php
index ddc820e2..b038b608 100644
--- a/scheduler.php
+++ b/scheduler.php
@@ -20,7 +20,7 @@ $scheduler->php($script, $bin, ['--task' => 'sync_learning', '--action' => 'main
     ->at('*/7 * * * *');
 
 $scheduler->php($script, $bin, ['--task' => 'vod_event', '--action' => 'main'])
-    ->at('*/9 * * * *');
+    ->at('*/5 * * * *');
 
 $scheduler->php($script, $bin, ['--task' => 'close_trade', '--action' => 'main'])
     ->at('*/13 * * * *');