Sorry Bootie but you must have goofed somewhere in your orders or else it's a bug, I've just ran some tests that prove things just can't happen the way you say they did, but if you're too shy to let me see your game files I can't get to the bottom of it once and for all..;)
There may be a clue here -
https://www.theblitz.club/message_boards...?tid=39883
(PS- a couple of other things my tests showed were that wind has no effect on scatter, and it also doesn't matter if the spotter can't see the spotting round impact. In both cases the barrage arrives smack on the designated impact point)