Snappy Roads Blueprint Tool: Announce and Support Thread

Hello, I don’t know what i am doing wrong but I follow your instruction tutorial, but my 3rd person character falls through any elevated roads. I have no collision with any road I build. I even created a new project from scratch, built a road and place the 3rd person on it and they just fall to the ground. Same thing happens also with your showcase map you included also where you show the elevated roads, still no collision. Any ideas what I am doing wrong?