orient problem - laying sections flat

Hello!

I'm having trouble with the orient command. It is being inconsistent and I cannot seem to fix it. There are two major problems. First, it is reorienting some of my surfaces properly, while leaving a copy of the surface in the original position. Second, and more frustrating, not all of the surfaces orient properly. A few lay flat but then rotate 90 degrees horizontally. 

Any help or insights would be greatly appreciated!

Images and files are below.

grasshopper screenshot 1gh%20problem%20part%201.png

grasshopper screenshot 2gh%20problem%20part%202.png

grasshopper file slat%20wall%20C2.gh