Just a couple of things come to mind about what might have affected your soap. How long did you wait until you poured one layer upon the other? Really only need to wait until a tough skin forms on the bottom layer and then spritz with alcohol and pour the next layer. Do that for each layer. I rarely refrigerate when making doing embeds and laers. Did you use the same base for all of the layers? Don't know if this helps, sorry about your soap.