Hello all.
I've been trying to follow Haljackey's tutorial on building directional T-interchanges with RHW, but I can't complete a certain step. This picture in particular is what I can't complete. The game won't allow me to build the left half of the ground RH4 beneath the elevated RH4. I followed everything in Haljackey's photos, and I still don't know whats going wrong. Tips?
So far, this is all I've been able to complete.