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When the Distribute forces to wall segments based on rigidity and the Use shearwall deflection to calculate rigidity Design Settings were both selected, the program did not take into account the distribution of forces on individual shearwall segments between openings when determining the critical segment for design. Instead it considers only the lowest Jhd value from all segments on the wall. As a result, walls with "unknown" material or hold-down choices are sometimes failing design when they should have designed a stronger wall that would pass.