This worked for me,
1. On the convert to section: Zoom Sens. Scaling -> No
2. You should get a GlobalSensitivity value.
3. On the convert to section: Zoom Sens. Scaling -> Yes
4. On the sensitivity cell paste the GlobalSensitivity value from step 2
5. Now go to GameUserSettings.ini and paste the new values
example:
SoldierZoomSensitivities=((1.000000, 0.707991),(4.000000, 0.601059),(8.000000, X.XXXXXX))
Edit: don't forget to paste the GlobalSensitivity and SoldierSensitivity aswell.