Ridgeback21

My Webhost provider allows me to keep back up files of the WP data whenever I wish. Now that I am back to WP version 3.9.1 everything is working again. So I will update each plug in and update, one at a time. Then, if all ok, will attempt to upload WP version 4.0 once more, whilst keeping back up files at each stage.

I have the same issue with the “Add Media” button. Have not tried “Insert/Edit Link”. I have had no choice but to revert my site back to WP version 3.9.1 whilst the issue is resolved.

Since the “Add Media” button is not working (having just uploaded WP to version 4.0 I have had no choice but to revert my site back to version 3.9.1 where the button is once again working. During the next few days, I will check and load each available plug in, one at a time. Then perhaps in a week or two, will keep new back up files, and attempt to load WP 4.0 once again. Until then, if anyone has any comment, do let me know.

As above. Just upgraded to WordPress 4.0 and my Add Media button seems not to be working. Again, I can add to the Media Library, but unable to place media in new posts.