TGT snaps when slewing whilst looking through the HUD

[Swift.]

When you designate a TGT using the HMD, for example a point off to your right. You can slew that point around using the TDC.

 

However when you look through the HUD (thus blanking the HMD and automatically assigning TDC to the HUD) any Slew motion will make the TGT snap to within the HUDs FOV.

 

JHMCSbug3.trk