I think he's asking how you made the collision so smooth, I haven't made dts collision for bricks in a while now so I don't really know if this is correct. But I think having collision for a brick that's at like a 45 degree angle it tends to be sticky when the player walks over it. I think I fixed this in the past by just using edge split on that edge that tends to grab to the player, applying edge split to a collision mesh seems like it would be even more glitchy, but that's what I've always done.
If you did soPhysician Prescribed Desoxyning different Barnabas let us know! I would love to learn some more tips and tricks that I haven't discovered yet.