i have read a couple of threads from a couple of years ago and i looks like i have the same issue. we have a service that is consumed in the flex viewer, i has points that are duplicated on a couple of layers and they retrieve different pdf maps. the points have a hyperlinked field and i configured the popup to retrieve a png file and apply the hyperlink to it, it has just stopped working last week. we still run flex 3.1 and i use the application builder, i have attached a word document to illustrate how i have configured the pop up in the past that worked. i really don't know what changed.
