Question:
I have a problem that some members in my sets of members are twisted. Why is that, and how can I solve it?
Answer:
A slight deviation of the node coordinates might result in a rotation of the member orientation.
In the future, you can check this by displaying the information about the member position in space from table column N. You can see there which global axis the member is parallel to, or in which plane spanned by the global axes the member rests.
If there is no entry, the member is positioned anywhere in space.