WB mesh offset wrong directions

Hello I need help trying to make an mesh offset using WB, the thing is that some meshes make it in one direction and other ones in the opposite direction.
Thank youCaptura de Pantalla 2020-11-27 a la(s) 21.37.54 Captura de Pantalla 2020-11-27 a la(s) 21.37.40 Captura de Pantalla 2020-11-27 a la(s) 21.37.18

Panel3.gh (9.6 KB) KANSO.3dm.zip (5.5 MB)