Actually the sap used for 100% coconut was .138! Check out the thread http://www.the-whisk.us/forum/viewtopic.php?t=5158&highlight=coconut&sid=56a52d73807ca550ac08a874c0d11446
Looks to me like the film that forms when it gets cold. If I mix up lye and let it cool to room temp I get that, if I put it in a jug with a lid while warm it doesn't happen. It looks like is referred to as "lye lint"
Ok, I can't Reilly see the pic very well, but this was just discussed on another board and the consensus was that it resulted from inadequate stirring. Don't know if that may be what happened to you.
I don't see any reason it would be soft other than the amount of water. I use hemp oil and it shouldn't be a problem. Should be fine with a good cure You might want to try discounting the water next time lye x 2