Yup, known issue. If the outline happens to touch all four edges, it can't figure out the shape. Just remove the outline from the outline layer and it should work - the default outline is the "whole board" like you already have.
Yup, known issue. If the outline happens to touch all four edges, it can't figure out the shape. Just remove the outline from the outline layer and it should work - the default outline is the "whole board" like you already have.