Any update? I got a similar problem in hornet using GBU-12s. Even when fuze is set to inst. the bombs do not explode. The mission was created prior to recent fuze updates if that helps. It would be nice to get some ideas on how to fix the problem (which fuzes to choose and which to avoid). I was pretty down few days ago when after an hour i reached station and later saw 4 bombs (in course of 30 minutes) hit but none explode.