Maj rail question

[tspco]

Today I tried to make some railings, when I worked on the left side of my model, the perpendicular offset worked great, but on the right side, I would get an error by trying a negative offset. When I watched a video about the plugin the offset correctly worked on both sides of the stairs. I managed to make it work by putting a 2" guide to the left from the right side of the stairs. Kind of a hassle though.