Thank you Elliot. Assigning the Field Group ID solved the issue.
Just a question, is there a way to assign the uploaded file to particular POST or uploaded user? So only that user have privilege to delete or select the uploaded file to the post? And to restrict that file to appear to particular e posts, when media file manager is opened?
Initially I thought the “Library -> Uploaded to post” was for that kind of feature, but I was wrong.
Thank you once again for your fantastic support.
