Here's an interesting bug (bug?):
I haven't had the time to upgrade to T20.0 by the way, so, if this is fixed in version 20, excellent, I'll be happy in a few days.
I have a series of columns with a strange shapes. One side curved, a sharp 25 degree corner on one side, two rectangular sections sticking out of the sides, stuff like that. Not much of a problem to model, I simply create a custom section using a polygon and then apply the section to a column. Done.
But when I come back later, and check the properties on the column I get a "Concrete beam properties" window instead of concrete column. And sure enough, the properties I can change correspond to those of a concrete beam. This happens frequently when I'm doing irregular sections via polygons.
No real problem for volume calculations. But there is a problem for form and surface areas. The local axis system is different for beams and columns, so when you apply a formwork formula designed for a column to a beam, you get the wrong area.
Anyone found a way around this, or at least an explanation as to why Tekla changes the element types?