I'm flummoxed. For five years I have been pouring my "hippy pillars" with palm wax. Not a problem. The last two batches I poured for some unknown reason are leeching oil....and a lot of it, to the point where they are slippery to hold and after a while this clouds on the surface and makes them look ...mouldy! No...I am not pouring more FO than I should. I AM measuring, and yes my scales are ok. Yes, I am measuring temperature and the FO is not being added when the wax is too cool. I am stirring WELL. I am using tried and tested fragrances...nothing new, nothing that could have been "changed" by the fragrance suppliers. The very weird thing is....all the melts I have poured are perfectly OK. Not a problem at all with them. I keep thinking it must be the wax then? But still....this doesn't explain why the melts are ok, but the pillars are leaking. Any ideas?