Using Drupal 7.39 and the MultiUpload FileField Widget module.
It works fine for articles, and custom content types I create, but it doesn't work for user fields. Even if I take the existing field from article, and add it as a field to user, it doesn't work.
You can select multiple images, and they show as "2 images selected", you click upload, and nothing happens.
Any idea why this is happening?