aromatopiacandles

I have a question related to GB 464 and frosting. I have been using GB 464 for years. After heating wax to 185, adding dye, FO, and letting cool until about 125 - 130 degrees, I pour the wax into glass jars that have been heated. They turn out beautifully with smooth tops and no frosting. However, I have noticed in candles that have sat at room temperature for a period of 3 months or so, frosting is occurring, sometimes significantly. Usually, I make my candles as they are ordered, so I had not noticed a problem before. Would anyone know #1 do soy candles have a short shelf life; #2 do they need to be stored in a particular temperature? (My candles are stored at 78 - 80 degrees in low humidity); #3 do you sell your candles once frosting occurs; and #4 does anyone use any type of additive to the GB 464 that keeps frosting at bay? Thanks for any help that can be provided.