So I while I was printing, I was screwing around with Kisslicer and well, slicing things and looking at time estimates.
As would be expected running my print over USB, overloading the CPU left me with some buffer issues. What I didn't expect is that it basically made Repetier host skip a few layers

so the printer started printing in air. I was printing with blue nylon and yes I overdid it in the oven and parts of it turned a little brownish (300°F for i-forgot-about-it hours). Prints great though

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