Mulitple image upload field widget working on custom content nodes but not on user nodes 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?
It was an administration template problem...

It works in bootstrap, but not with 7 theme, but it does with Stark.

I thought that the Drupal 7 theme would be bullet proof, I guess not...

So always best to test various admin themes to see if that is the problem in the future.