Thanks guys.
Yes Jimbuna, it's GWX v 1.02
I will try "no WO assistance" first. IIRC, I never use WO assistance anyway. Whenever I find a taget, I always do the aiming and hit the firing button myself, although still not manual targeting. I never ask my WO (by clicking the WO picture on the bottom left of the screen) to find the target, or do the solution or other stuffs. Clicking WO picture and tell him to find the taget and do the solution is "WO assistance" right?