"Uploaded to" = not updated if image is deleted from post
If an image is inserted in a post, the Media Library displays the post name with a hyperlink to the post-edit page. However, if the image is later deleted from the post, the "updated to" field continues to display the details of the post.
"Uploaded to" = shows only one post, even though an image may be inserted into multiple posts.
An image can be inserted into multiple posts, however the "Updated to" field in the Media Library only ever shows the details for the first of those posts. The existence and identity of other posts in which the image has been inserted are never shown.
Note: these faults are not new to Vn3.9; they have existed for some time.