I have experienced this strange behavior. Recently i build application on QlikView 11 SR5. It worked perfectly fine. Then my friend who had already upgraded to SR 6 version took over this project and did some changes to the application.
When he hits RELOAD button on SR 6 version everything goes OK. He saved That application and sent it back to me. I tried to reload it, and it suddenly hangs on
Script log does not show any information, and QlikView just stops responding.