Mesh falls through geometry

I’m trying to make motorcycle based on physics. But it often falls through landscape (or any other object with geometry). So i made a simple test: Empty actor with skeletal mesh component as root, with enabled physics simulation, enabled ccd and collision. And i launch this actor into landscape (using Add Impulse). Sometimes it collides as expected and sometimes it goes through. Is it physics engine bug, or am i missing something?

Experiencing same issue in UE5 when in UE4 everything worked OK. Did you manage to solve this?

Nope. Sphere collisions work better, but still can sometimes go through complex geometry.

I just solved this in my case by enabling Physics Substepping as explained in this post

Yes, thank you! Works for me too.