My understand of this is that there is a bug in the Arc tool such that it will snap to pads that are on the a different layer from the arc being drawn.
I've fixed this and pushed two commits to LP884046. The first one adds commentary to the snapping routines, the second one fixes the arc bug.
My understand of this is that there is a bug in the Arc tool such that it will snap to pads that are on the a different layer from the arc being drawn.
I've fixed this and pushed two commits to LP884046. The first one adds commentary to the snapping routines, the second one fixes the arc bug.