HSL color adjustment eyedropper gone?

I've recently experienced the disappearance off the eyedropper/color picker tool when I want to make adjustments in the HSL develop module in Lightroom CC. I click on the button in the panel next to either Hue, Saturation or Luminance in the panel but what shows up is the "zoom" icon over the image rather than the "color sampling" icon that normally shows up. No idea why this is happening but I cannot figure out how to get it back. LR CC is up to date, started and restarted and I still get the zoom icon everytime I try to make a color adjustment.

Any thoughts or help would be greatly appreciated!