It would be recommendable to align it with the local RC's X axis direction
- in our Getting Started with RailClone
guide (under chapter 9 - Create your first 2d array
) you can find following rule for building 2D arrays: "Rule 2: To avoid gaps, Segments should be the same Y length: Because the A2S array is a stack of L1S generators, if you use Segments with unequal sizes on the Y axis in a row, the overall height of that row is determined by the tallest segment. The row directly above will be positioned after the tallest segment and gaps will appear."
I hope that helps.
In case of any further troubles with it, as it's really hard to say, what's happening exactly in your scene just from the provided screen-shot, if possible, please feel free to send us
your scene (ideally simplified and containing just this problematic object(s)) to email@example.com to check it here. In case of a big file size, please use a web sharing service like WeTransfer. Ideally, if you'll be able to reproduce it on a minimal scene, which you can send us, it would be great.