If you bought it new, you should've had one supplied with the 11 speed freehub.
It shipped with a mtb hub, so I bought the 11s road free hub (with qr end caps), and put the mtb endcaps back on. Those are what I assume to be 10s ones.
Which I guess is where I went wrong!
@seager started
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If you bought it new, you should've had one supplied with the 11 speed freehub.