I've got the Elite Chrome blues

The fact that pretty soon all the Kodak Elite Chrome is going to run out is bad enough. What makes things worse is when two whole rolls of the stuff come back from the lab almost totally blue. This hasn't happened before no matter what conditions I shoot in so it's a bit of a shock to lose stuff like that. It was pretty random too, shots taken almost simultaneously would be OK in the first and then totally blown out in the second. Had to heavily tweak stuff like this shot and re-scan others in an attempt to salvage things. It's a mystery to me so if anyone else has any clue what I'm doing wrong I'd love to hear from you, I don't want to waste any more chrome!