I have created a sub-domain img.domain.com and in the database I have changed the required paths inserting the root and the url to this sub-domain. I have also changed these paths in options.php under admin setup.
All my media is uploading nicely to the new subdomain, with the year and all; folders being automatically created. In media library the image shows the link to the collect location of the image, but the image in the media library is just a blank grey box.
Am I missing something here with permissions or needing to enqueue in functions.php?