diff --git a/app/controllers/weapps/challenges_controller.rb b/app/controllers/weapps/challenges_controller.rb
index 24bd4baeb..e29f16f28 100644
--- a/app/controllers/weapps/challenges_controller.rb
+++ b/app/controllers/weapps/challenges_controller.rb
@@ -6,10 +6,10 @@ class Weapps::ChallengesController < Weapps::BaseController
     # 关卡有展示效果 || 选择题 || jupyter实训 || vnc || 隐藏代码窗口 || html+css实训
     # @challenge.show_type != -1 || @challenge.st == 1 || @shixun.is_jupyter? || @shixun.vnc ||
     #     @shixun.hide_code? || (@shixun.small_mirror_name & ["Css", "Html", "Web"]).present?
-    play = @shixun.is_jupyter? || @shixun.vnc ||
+    play =  @challenge.st == 1 || @shixun.is_jupyter? || @shixun.vnc ||
         @shixun.hide_code? || (@shixun.small_mirror_name & ["Css", "Html", "Web"]).present?
 
-    if @challenge.st != 1 && play
+    if play
       normal_status(-5, "该关卡暂不支持小程序")
     else
       render_ok
diff --git a/app/models/course.rb b/app/models/course.rb
index f7db61995..14c17cf39 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -387,7 +387,7 @@ class Course < ApplicationRecord
   end
 
   def max_activity_time
-    course_acts.pluck(:updated_at).max
+    course_activities.pluck(:updated_at).max
   end
 
   # 课堂作业数
diff --git a/app/services/admins/school_daily_statistic_service.rb b/app/services/admins/school_daily_statistic_service.rb
index 64bb97864..5dce40540 100644
--- a/app/services/admins/school_daily_statistic_service.rb
+++ b/app/services/admins/school_daily_statistic_service.rb
@@ -44,7 +44,7 @@ class Admins::SchoolDailyStatisticService < ApplicationService
 
     courses = Course.where(is_delete: 0, school_id: ids).group('school_id')
     course_map = courses.count
-    nearly_course_time_map = courses.joins(:course_acts).maximum('course_activities.updated_at')
+    nearly_course_time_map = courses.joins(:course_activities).maximum('course_activities.updated_at')
     active_course_map = courses.where(is_end: false).count
 
     shixun_map = Shixun.joins(user: :user_extension).where(user_extensions: { identity: :teacher, school_id: ids })
diff --git a/lib/tasks/migrate_course_resource.rake b/lib/tasks/migrate_course_resource.rake
index 44e4ef5f4..34d216625 100644
--- a/lib/tasks/migrate_course_resource.rake
+++ b/lib/tasks/migrate_course_resource.rake
@@ -193,6 +193,16 @@ namespace :migrate_course_resource do
     target_course = Course.find_by(id: target_id)
     return if source_course.blank? || target_course.blank?
 
+
+    # 先把target——course中的老师创建分班权限
+    target_course.teachers.each do |member|
+      if member.teacher_course_groups.blank?
+        target_course.course_groups.each do |group|
+          TeacherCourseGroup.create!(course_group_id: group.id, course_id: target_course.id, course_member_id: member&.id, user_id: member&.user_id)
+        end
+      end
+    end
+
     source_course.course_members.where(role: %i[PROFESSOR ASSISTANT_PROFESSOR]).each do |teacher|
       new_member = target_course.teachers.find_by(user_id: teacher.user_id)
       unless new_member.present?
@@ -210,7 +220,7 @@ namespace :migrate_course_resource do
       group.course_members.where(role: 4).each do |member|
         new_member = target_course.students.find_by(user_id: member.user_id)
         if new_member.present?
-          new_member.update_column("course_group_id", new_group.id)
+          new_member.update_attributes(course_group_id: new_group.id)
         else
           CourseMember.create!(course_id: target_course.id, course_group_id: new_group.id, user_id: member.user_id, role: member.role)
           new_user_ids << member.user_id
@@ -221,7 +231,7 @@ namespace :migrate_course_resource do
 
       group.teacher_course_groups.each do |teacher_group|
         member = CourseMember.find_by(course_id: target_course.id, user_id: teacher_group.user_id, role: %i[CREATOR PROFESSOR ASSISTANT_PROFESSOR])
-        if member.present?
+        if member.present? && !member.teacher_course_groups.where(course_group_id: new_group.id).exists?
           TeacherCourseGroup.create!(course_group_id: new_group.id, course_id: target_course.id, course_member_id: member&.id, user_id: member&.user_id)
         end
       end
@@ -231,7 +241,7 @@ namespace :migrate_course_resource do
     source_course.students.where(course_group_id: 0).each do |member|
       new_member = target_course.students.find_by(user_id: member.user_id)
       if new_member.present?
-        new_member.update_column("course_group_id", 0)
+        new_member.update_attributes(course_group_id: 0)
       else
         CourseMember.create!(course_id: target_course.id, course_group_id: 0, user_id: member.user_id, role: member.role)
         user_ids << member.user_id