If you are drawing that reticle in UMG you will want to set the pivot point on it to 0.5, 0.5 (assuming its a square image).
On the UMG item panel it would be Details >> Render Transform >> Pivot.
If you are drawing that reticle in UMG you will want to set the pivot point on it to 0.5, 0.5 (assuming its a square image).
On the UMG item panel it would be Details >> Render Transform >> Pivot.