Skeletal Mesh NPC fall in floor

Hello, how is everything? hope so.

I have a problem that searching on the internet could not solve.
I’m doing a passerby BP walking along a spline. A simple mesh along the spline.

I thought about enabling physics, so I don’t need to make detailed elevations of the NPC walking. Because I also intend to make a BP with cars.

But I tried everything, many answers said it was a collision problem, I even tried a capsule on the NPC, collision in floor…but nothing solves it.

When I activate physics, the NPC simply crashes and falls to the ground. Even characters from Scanned3DPeoplePack, inserted as actors, when you activate physics, fall to the ground.

What can I do?
Q0LYoXKEus

By enabling physics on a mesh, you will activate its Physics Asset (which results in a ragdoll effect). Instead, simulate physics on the capsule, and make it follow the spline.