Note: By default, while assigning a material to a sheetmetal part, the function ProMaterialCurrentSet() modifies the values of the sheetmetal properties such as Y factor and/or bend table as per the material file definition. This triggers a regeneration and a modification of the developed length calculations of the sheetmetal part. However, you can avoid this behavior by setting the value of the config option "material_update_smt_bend_table" to "never_replace".