I have a similar problem,.. except I do exactly what the manual says.
I'll have an empty flat map and have three or four enemies on it. I'll give them the main
ACE.fpi and then the shoot:CHASE.fpi. I'll then make a straight line waypoint for each one.
The enemies mostly just walk in place. They sometimes manage to follow the waypoint path just a bit before they get stuck but still have the walking animation. Most of the time though they just stay where they spawned and have the walking animation but no movement.
It even happens if I just give them the main:STATIC.fpi and the shoot:CHASE.fpi with no waypoints. They'll spot me and mostly just run in place.
Even if I give the enemies the main:FOLLOW.fpi and set straight line waypoints they mostly get stuck or just walk in place at their spawn point. Sometimes if I shoot them they'll walk the path for a small bit before getting stuck again.
The entities just can't seem to even barely move at all! The tutorial waypoint maps somehow work but I don't notice any difference in how I place the waypoints or entities.
Has anyone heard about this or know what is causing this?
I like pie.
