Bought a few boxes of Arm & Hammer baking soda litter recently, unscented, 28lb box. I use this product all the time, but now it looks like a totally different product... a much darker clay look to it. Are they getting cheap and trying to increase profits, or did they simply forget to put the baking soda in it? I used it anyway and it's definitely not killing odors like it used to. Anyone else here notice this?