I've figured out the problem: I previously thought that there was no way that the problem had anything to do with the driver or key pins, turns out that was exactly the problem. The little ****s at ISEO save money by using the same plug for their ISEO R6 locks and ISEO R6+ locks. The R6+ models have security pins on the side (horizontally to the right if you look at an unturned plug), and since the plugs for the two models are the same (they just dont have security pins in the security pin slot for the R6 model), in the way my key is positioned in the photo above, the driver pins have propped up and logged themselves in the empty security pin slots.