To search for the column 'Thumbnail' use the attribute 'data-field' instead of the internal text (events.js)

The internal text will be equal to "Thumbnail" only if the English language is used without translation. In the case of translation, the internal text will be different !!!

Author: IgorA100

web/skins/classic/views/js/events.js

@@ -508,7 +508,7 @@ function initPage() {
     });
 
     const thumb_ndx = $j('#eventTable tr th').filter(function() {
-      return $j(this).text().trim() == 'Thumbnail';
+      return $j(this).attr('data-field').toLowerCase().trim() == 'thumbnail';
     }).index();
     table.find('tr td:nth-child(' + (thumb_ndx+1) + ')').addClass('colThumbnail');
   });