Collision question

[Yaklakootmaa2 (Yaklakootmaa)]

I don’t know why but yes if the mesh is not on the top of the hierarchy it won’t be blocked, I spent a lot of time finding out this

How to make one-way collision

Finally, I’ve found the reason why the block on projectile and barrier didn’t work at all. The reason was pretty simple but unobvious - if a projectile mesh is not a root - collision settings won’t work properly [projectile - issue]