Hi all, we are having an unusual problem with piling on our second down blanket, we are a cold set printer and run cmyk. The red blankets get a slick coating on them and can be hand scrubbed off but will not come off with blanket washers. we have not changed anything in our ink or dampening, the coating does not show up anywhere else and here's the kicker, we run two presses side by side, both run the same paper and ink. Also we are using the same blankets on both presses. One press has it, the other does not. Any thoughts??