Wow! Thank you, worked perfectly.I genuinely believe that the ramp should be working according to them pictures.
So here's what you could try. Copy a square piece of terrain just a little bit larger than the green square in the picture. And paste it over the top of that ledge (removing the ledge). Redraw the ledge and try the ramp again.
EDIT: Don't just remove the ledge the normal way. As it won't erase any terrain memory that's causing your error properly.
I tried dragging in every way possible, it was impossible, but it is now fixed.or try drag the cursor from high ground to low ground
Wow! Thank you, worked perfectly.