diff --git a/classes/frequency.php b/classes/frequency.php
index 30444d76..4ed8939d 100644
--- a/classes/frequency.php
+++ b/classes/frequency.php
@@ -1219,7 +1219,10 @@ public function get_frequency_array(int $year, string $metric, array $modules) :
         } else {
             // Work through the event array.
             foreach ($modules as $module) {
-                $events = array_merge($events, $this->$functionname($module, $from, $to));
+                $records = $this->$functionname($module, $from, $to);
+                foreach ($records as $record) {
+                    $events[] = $record;
+                }
             }
         }
 
diff --git a/history.php b/history.php
index dea15cb1..beb7e593 100644
--- a/history.php
+++ b/history.php
@@ -49,7 +49,7 @@
     $actionurl = new moodle_url('/local/assessfreq/history.php', array('action' => 'confirmed'));
     $cancelurl = new moodle_url('/local/assessfreq/history.php');
     echo $OUTPUT->confirm(get_string('confirmreprocess', 'local_assessfreq'),
-        new single_button($actionurl, get_string('continue'), 'post', true),
+        new single_button($actionurl, get_string('continue'), 'post', single_button::BUTTON_SECONDARY),
         new single_button($cancelurl, get_string('cancel'), 'get'));
 
 } else if ($action == 'confirmed') {