I'm using CWALSHT to design an anchored sheet pile and everything works out fine for the "design" parameters. When I enter in sheet pile data (depths, E, I) for the “analysis” option, I get the attached error saying that "Wall bottom has been specified above the soil surface." This isn't the case though. Wall bottom is set at 1055. Left surface set at 1062 and right surface set at 1075. My soil layer data goes well below the bottom of the wall too. Any ideas what I'm doing wrong?