Hi Jon,
I have looked through the tutorials and example scripts for geometrygym to GSA but still have some questions. I have attached a file showing my buildup of the gsa output from a mesh generated first by kangaroo and remeshed using meshmixer. When I enable the solver I can see it open and run in GSA and even solve, however, the results query in grasshopper does not seem to want to pull principal stress vectors. Would you happen to know where I am going wrong?