Hi Vihren,
Have you read the documentation of OS Property 3.12.2 :
osproperty.ext4joomla.com/latest-updates...7-new-version-3-12-2
In this documentation, we show you how to use Grab Images tool. If it doesn't work for you. Please submit ticket and send your site url with super admin account. I will check the problem for you. You also can send the Grab link here so i can test on our environment.
Thanks
Dam