Hello,
That looks like a nice setup there! Is the rail synced, or not using a KUKA motor?
We would need to integrate the rail, though you can also just use the generic rail to get started, if you don't mind it being much too large.
in any case, it seems as if the ROBROOT is flipped, you can do that in PRC e.g. via the Custom Robot component.
See the example attached below!
Best,
Johannes