I cannot get my AI NPCs to use ramps to change levels. They stay on the level they are started on. If they manage to end up in the ramp (by falling into it), they stay on the ramp and just go up and down it.
I figure, with 5 of them, and 5 levels to choose from, it is a statistical impossibility that they are choosing to stay there and instead they think there is no way to leave.
What have I done wrong?
Hey @Elryk1!
Have you tried to increase the “walkable floor angle” in the “character movement component”, or reduce the “Agent max slope” in Project settings?
What about making ramps that have a lower gradient?
Check that stuff out and get back to us! 
The ramps are 30 degrees. The agent max slope is 45 now, I have set is as high as 89. I haven’t changed walkable floor angle, it is at 44.765083. I cannot change the angle much without redesigning the whole structure.
I figured it out. Those collision boxes on the outside of the area they are walking on were causing the problem. They were set for query only, no physics so I assumed they would be fine. They were not fine. I also had to disable can ever affect navigation. After that was off, the NPCs worked correctly.
