I get the error code E06-0313 after "finding surface" (all other setup/measurement maneuvers normal). The bit lowers (twice) to find the surface (as normal), then reads "finding board thickness", moves the bit past the board, lowers to the sliding plate and gives the error. Have reformatted the card and re-uploaded the project with the same results. Have not seen "finding board thickness" before (in 250+ carving hours). Advice??