diff --git a/grade/report/grader/lib.php b/grade/report/grader/lib.php
index d154df1320c..8e4560f280a 100644
--- a/grade/report/grader/lib.php
+++ b/grade/report/grader/lib.php
@@ -45,6 +45,13 @@ class grade_report_grader extends grade_report {
      */
     private $allgrades;
 
+    /**
+     * Contains all grade items expect GRADE_TYPE_NONE.
+     *
+     * @var array $allgradeitems
+     */
+    private $allgradeitems;
+
     /**
      * Array of errors for bulk grades updating.
      * @var array $gradeserror
@@ -519,6 +526,22 @@ class grade_report_grader extends grade_report {
         return $this->users;
     }
 
+    /**
+     * Load all grade items.
+     */
+    protected function get_allgradeitems() {
+        if (!empty($this->allgradeitems)) {
+            return $this->allgradeitems;
+        }
+        $allgradeitems = grade_item::fetch_all(array('courseid' => $this->courseid));
+        // But hang on - don't include ones which are set to not show the grade at all.
+        $this->allgradeitems = array_filter($allgradeitems, function($item) {
+            return $item->gradetype != GRADE_TYPE_NONE;
+        });
+
+        return $this->allgradeitems;
+    }
+
     /**
      * we supply the userids in this query, and get all the grades
      * pulls out all the grades, this does not need to worry about paging
@@ -567,6 +590,19 @@ class grade_report_grader extends grade_report {
                 }
             }
         }
+
+        // Pre fill grades for any remaining items which might be collapsed.
+        $allgradeitems = $this->get_allgradeitems();
+        foreach ($userids as $userid) {
+            foreach ($allgradeitems as $itemid => $gradeitem) {
+                if (!isset($this->allgrades[$userid][$itemid])) {
+                    $this->allgrades[$userid][$itemid] = new grade_grade();
+                    $this->allgrades[$userid][$itemid]->itemid = $itemid;
+                    $this->allgrades[$userid][$itemid]->userid = $userid;
+                    $this->allgrades[$userid][$itemid]->grade_item = $gradeitem;
+                }
+            }
+        }
     }
 
     /**
@@ -918,12 +954,7 @@ class grade_report_grader extends grade_report {
         // grade items (in case one has been hidden) as the course total shown needs to be adjusted for this particular
         // user.
         if (!$this->canviewhidden) {
-            $allgradeitems = grade_item::fetch_all(array('courseid' => $this->courseid));
-
-            // But hang on - don't include ones which are set to not show the grade at all.
-            $allgradeitems = array_filter($allgradeitems, function($item) {
-                return $item->gradetype != GRADE_TYPE_NONE;
-            });
+            $allgradeitems = $this->get_allgradeitems();
         }
 
         foreach ($this->users as $userid => $user) {
diff --git a/grade/report/grader/tests/behat/switch_views.feature b/grade/report/grader/tests/behat/switch_views.feature
index 775f455c05b..54bed2bbf64 100644
--- a/grade/report/grader/tests/behat/switch_views.feature
+++ b/grade/report/grader/tests/behat/switch_views.feature
@@ -12,6 +12,7 @@ Feature: We can change what we are viewing on the grader report
       | username | firstname | lastname | email |
       | teacher1 | Teacher | 1 | teacher1@example.com |
       | student1 | Student | 1 | student1@example.com |
+      | student2 | Student | 1 | student2@example.com |
     And the following "course enrolments" exist:
       | user | course | role |
       | teacher1 | C1 | editingteacher |
@@ -94,6 +95,9 @@ Feature: We can change what we are viewing on the grader report
       | capability | permission |
       | moodle/grade:viewhidden | Prevent |
     And I log out
+    And the following "course enrolments" exist:
+      | user | course | role |
+      | student2 | C1 | student |
     And I log in as "teacher1"
     And I follow "Course 1"
     And I navigate to "View > Grader report" in the course gradebook