port orientation requirement for cSt MWS ?

Is the waveguide port still required to be parallel to the computation domain box?
For example, two end ports of a wr284 section with a 45-degree bend in middle.
Hope to get a quick answer, thanks.

I think the answer is no, they don′t have to be in parallel. However, if you post your problem, we will be able to look at it better.
Cheers,
Element7k