I’ve had difficulty with a new bunch of soap colorants pooling in the bottom of my soap, being unevenly dispensed, and fading ( some to completely white!) in my melt and pour soap. Is there any way to fix this? It does seem to just be happening with the new set. They are liquid, but are designed for soap, and have no specifications about type of soap or warnings about fading. Thanks PS: top picture used to be green.