Has anyone experience a batch of FAE that seems to be a different formula? I had about 10 jars on hand and may have mixed up my product rotation but ran into a jar or two that, when mixed, created a yellowish color in the jug. During application, it made my lungs tickle to a point of coughing. I also noticed, after I wiped my lips with the back of my hand that had the FAE dust on it, my lips started to instantly sting bad enough that I ran to the customers sink to flush with water. I found that it works great but extra caution should be taken when using it.