update

app/Http/Controllers/Admin/OtherController.php

@@ -411,9 +411,11 @@ class OtherController extends CommonController
                 foreach ($users as $user) {
                     // 获取该学员报名的课程列表（与coursesHome逻辑保持一致）
                     $userCourseSigns = CourseSign::where('user_id', $user->id)
-                        ->whereDate('created_at', '>=', $start_date)
-                        ->whereDate('created_at', '<=', $end_date)
-                        ->where('status', 1)
+                        ->whereHas('course', function ($query) use ($start_date, $end_date) {
+                            // 开始结束日期的筛选。or查询
+                            $query->whereBetween('start_date', [$start_date, $end_date])
+                                ->whereBetween('end_date', [$start_date, $end_date]);
+                        })->where('status', 1)
                         ->where(function ($query) use ($course_ids) {
                             if ($course_ids->isNotEmpty()) {
                                 $query->whereIn('course_id', $course_ids);