Images are being stripped when some users update / publish posts.

I am the super admin, I can add images to posts / pages and update / publish fine fine and the images will remain.

I set up another user – also an admin. When ever that account tries to add an images to post page the image will disappear when published and will not be visible when previewing.

I have been looking for some information on this problem for some time now with no luck.

I am using a WordPress Multisite

Any help would be appereciated.