diff --git a/core/misc/ajax.js b/core/misc/ajax.js
index b63bc03..be453e9 100644
--- a/core/misc/ajax.js
+++ b/core/misc/ajax.js
@@ -284,6 +284,8 @@
       }
     };
 
+   // element_settings.event = element_settings.event + '.drupalAjax';
+
     $.extend(this, defaults, element_settings);
 
     /**
diff --git a/core/modules/file/file.js b/core/modules/file/file.js
index 8ed377e..67ffb27 100644
--- a/core/modules/file/file.js
+++ b/core/modules/file/file.js
@@ -66,7 +66,7 @@
    */
   Drupal.behaviors.fileAutoUpload = {
     attach: function (context) {
-      $(context).find('input[type="file"]').once('auto-file-upload').on('change.autoFileUpload', Drupal.file.triggerUploadButton);
+  //   $(context).find('input[type="file"]').once('auto-file-upload').on('change.autoFileUpload', Drupal.file.triggerUploadButton);
     },
     detach: function (context, setting, trigger) {
       if (trigger === 'unload') {
@@ -89,12 +89,12 @@
     attach: function (context) {
       var $context = $(context);
       $context.find('.js-form-submit').on('mousedown', Drupal.file.disableFields);
-      $context.find('.js-form-managed-file .js-form-submit').on('mousedown', Drupal.file.progressBar);
+      $context.find('.js-form-managed-file .js-form-submit').on('mousedown', Drupal.file.triggerUploadButton);
     },
     detach: function (context) {
       var $context = $(context);
       $context.find('.js-form-submit').off('mousedown', Drupal.file.disableFields);
-      $context.find('.js-form-managed-file .js-form-submit').off('mousedown', Drupal.file.progressBar);
+      $context.find('.js-form-managed-file .js-form-submit').off('mousedown', Drupal.file.triggerUploadButton);
     }
   };
 
@@ -170,7 +170,10 @@
      *   The event triggered. For example `change.autoFileUpload`.
      */
     triggerUploadButton: function (event) {
-      $(event.target).closest('.js-form-managed-file').find('.js-form-submit').trigger('mousedown');
+     Drupal.file.progressBar(event);
+
+      $(event.target).closest('.js-form-managed-file').find('.js-form-submit')
+        .trigger('fileUpload');
     },
 
     /**
@@ -220,7 +223,7 @@
      *   The event triggered, most likely a `mousedown` event.
      */
     progressBar: function (event) {
-      var $clickedButton = $(this);
+      var $clickedButton = $(event.target).closest('.js-form-managed-file').find('.js-form-submit');
       var $progressId = $clickedButton.closest('div.js-form-managed-file').find('input.file-progress');
       if ($progressId.length) {
         var originalName = $progressId.attr('name');
diff --git a/core/modules/file/src/Element/ManagedFile.php b/core/modules/file/src/Element/ManagedFile.php
index 0077716..79d0d84 100644
--- a/core/modules/file/src/Element/ManagedFile.php
+++ b/core/modules/file/src/Element/ManagedFile.php
@@ -204,6 +204,7 @@ public static function processManagedFile(&$element, FormStateInterface $form_st
         ],
       ],
       'wrapper' => $ajax_wrapper_id,
+      'event' => 'fileUpload',
       'effect' => 'fade',
       'progress' => [
         'type' => $element['#progress_indicator'],
@@ -216,7 +217,7 @@ public static function processManagedFile(&$element, FormStateInterface $form_st
       '#name' => $parents_prefix . '_upload_button',
       '#type' => 'submit',
       '#value' => t('Upload'),
-      '#attributes' => ['class' => ['js-hide']],
+     // '#attributes' => ['class' => ['js-hide']],
       '#validate' => [],
       '#submit' => ['file_managed_file_submit'],
       '#limit_validation_errors' => [$element['#parents']],