Hi,

This bug has been fixed.

You can fix this bug in your site by editing ajax/video_queue_display.php file.

Go to line 21 and find below code

Code:
$video_info['video_thumb_url'] = $servers[$video_info['video_server_id']];
replace it with code

Code:
$video_info['video_thumb_url'] = $servers[$video_info['video_thumb_server_id']];
Save and upload.

If you can't get it fixed, please open a Support ticket.

Thanks,