Maybe this is working as designed, but I think it could be better. I use side-loading on underground half-belts (one side of a pair of undergrounds) to create lane balancers. I then place opposite direction these balancers in close proximity. I am required to offset these balancers by one tile so ...

I use side-loading on underground half-belts (one side of a pair of undergrounds) to create lane balancers. I then place opposite direction these balancers in close proximity. As I design them, they work perfectly fine. However, when I copy/paste the design, some of the underground belts will change ...