I imported some meshes from megascans but when i use them in the scene, the collision does not work. Even the preset of "Block All" does not work. but other box/sphere/capsule collision works fine. what am i doing wrong?

Please help

If you look at the in the static mesh editor, you’ll see they have no collision defined

326329-screenshot-1.jpg

You either need to setup a basic collision

326330-screenshot-2.jpg

or change the default to ‘complex as simple’ which uses the geo to make the collision

you are a life-saver. thanks.