Apologies for the delay in getting back to you. I'm still running the latest stable version due to client work, so can't update C2 yet, sadly.
Based on the code and image you posted one or more of the following could be a problem:
The X-axis spawn position for the pillar creation looks incorrect - it should be 630, not 1100.
Make sure that the origin point of the pillars is in the bottom left hand corner.
Also, the array's initial dimensions should start be 0,1,1.
Aside from that I can't see anything obvious that would be causing issues. Hope that helps