reported earlier GBU-38 falling short even if in zone

[Coding]

Jet was set up to start "from runway".
The attack begins around 05:22 local time (22 minutes into the mission)
Around 05:22:40 I checked the GBU-38s were aligned.
My altitude was 35000 feet and I was flying with mach 0.89
At 17 nm range to target I got "in range" and at ~16.5 nm I got "in zone".
At 16 nm I dropped the first bomb and dropped 2 other GBU-38s on other targets with very similar conditions.
The 4th GBU-38 was dropped much closer to the target.
The result was all first 3 bombs were falling way short, only the last hit the target.
How can this be?
When a targeting computer tells me that I am in zone I expect to hit my target with a GPS-guided weapon.
 

tacview.zip.acmi trackfile.trk

[BIGNEWY]

Hello, 

 

we do have this reported, high altitude deliveries are creating problems, the team are working on a solution. 

 

thank you