Bug report: Community Bug Reporting System
I tried the new GBU-62 LJDAM-ERs during some matches and noticed they weren’t hitting anything. I thought I must be doing something wrong (laser issues) but it turns out this bug happens on GBU-39 JDAM-ERs as well. It certainly wasn’t doing this before the major update because I was hitting everything with the F-15E just fine.
Since you mention 30km, that is the maximum distance from which you can designate a spot using the TGP. So what ends up happening is that the designated point will be located in the air, which the bomb “hits” but then flies past, so it tries to turn around to hit it again. That’s my guess at least.
If you want to hit positions more than 30km away, you have to set the POI using the map like this, and it should work.
Note that once you’ve set a point at 30km+ and go back into the TGP, make sure to not move the camera (manually) at all, or it will reset it to the 30km limit.