I'm currently running a trial of V21 Build 208. When using the color grading panel, under Lift, I click the little cross hair target icon and click a black point in the preview image and nothing happens. I then have to click anywhere from 8-12 more times on the same point in order for it to select the color and take effect. The same thing happens with the Gain, about 10 clicks in the same spot before it takes effect. It's not a processing or lag issue, because I've done one click and waited and nothing. Why is this happening?