Hi,
Starting from the wpDiscuz Media Uploader (version 7.1.3) the working logic of the wpDiscuz Media Uploader add-on has changed.
In the previous version, once an image was selected, it was immediately uploaded to the server. This might pose a security risk, as it might lead to website vulnerabilities.
For security reasons, we have changed the file uploading process. Now, files are uploaded to the server only when the comment is posted. The add-on still supports multiple file uploads—you can select multiple images when clicking the Upload Image button.
Important: The Delete button is not available in wpDiscuz Media Uploader v. 7.1.3 because the HTML input type is File, which does not allow image deletion after uploading.