I am just about done with a Chuckanut 12 build and have exactly the same issue on one of my frames. I spent a few days loosing sleep as the joints were all lashed and epoxied at this point. After measuring a lot and looking at it a lot more I finally decided to just leave it alone. I don't think there will be any noticeable adverse effect on the handling of the boat and now that the boat is skinned and painted it's impossible to see unless I point it out.

-Don

: Hey guys,
: Today I fevereshly lashed/glued all my offsets checking level on
: gunwales (side to side) andvertically (top to bottom). Did all
: and
: failed to realize #4 (of 6 in a seatour) was glued/lashed at an
: angle (strboard side is close to 1/4" fwd of the
: portside (or viceversa).