[SIM] AIM-7M of F-16A ADF Weird Behavior

Hi,

Any time I launch an AIM-7M in the non-DP radar mode it explodes not even reaching the target but the radar keeps locked all the way and there are no any conditions to make it lose the target.
Moreover it happens mostly to the first launch out of two. The next works correctly but not always.
Any ideas?

Issued in Test Flight on a pretty short distance (5 miles).