The addon seems to collide with Combat Space Enhancement modification. Ballistics seem to follow the solutions I've made (link) rather than the ones calculated by ATragMX.
I can presume AGM does the same, and hence all your problems, guys.
Spotter can estimate targets speed as well, as most of the spotting scopes have mil scale as well. Also there is no reason to disable it when scoped
In-game laserdesignator seems to have second focal plane reticle with MIL scale.