Stop a unit from walking over a cliff?

My units won't stop when they hit a cliff. They just walk over. Earlier in the map I turned off collision in a trigger but I had a trigger that turned it back on. Plus, I removed both triggers. Help?

Are your units flying units?

If a unit movment type is Flying or None cliffs dont matter.

Edit: What I mean is that cliffs dont bloak them from moving forward.

It's a ground unit based off a male villager.

Have you tried recreating it?

The map or the unit? I haven't tried either yet.

The unit. But, in my experience, triggers have always been the source of my problems. Check your triggers, one by one, and make sure none of them change any pathing.

Ok. I'll check again.

Check The Cliffs Pathing. Also you can use the doodads pathing blockers.

Ok. I tested it out. It is the units that I C&P from another map (two male villagers, two female villagers, and a beastmaster). I know because I used some other units and they worked fine. I tried making new versions but the problem persisted. The only thing I can think of is a trigger issue but I don't know what it would be.