I will give that a try, thank you. If it means anything, I downloaded Unity on my Laptop completely fresh, with nothing ported over from my PC. When I went to test the station in the ClientSim, I had the exact same problem. I created a fresh world, made a cube for the floor, made another cube for the seat, made two empty objects for entry and exit, placed the entry on the top of the cube, the exit beside it on the floor. I entered ClientSim, and nothing. No prompt is showing up to use the seat, nothing at all. Clicking does nothing, pressing keys does nothing.
I… must be missing something. If the template project doesn’t work, I will retrace the steps I took on the laptop.