I am hesitant to ask this, for fear I've missed something patently obvious, but here goes.
I am making this sweater (my second ever):
and have reached the point where I am casting on 40 stitches at beginning of next two rows, for sleeves. I did so, and am bothered by the fact that my first (right) sleeve has one more row than the other, since it was worked twice in the two-row process. Did I err? Is this fixable?
Thanks in advance