# Course: Let's Make a Game! - Brick Breakers **URL:** \ **Category:** Tutorial & Course Discussions\ **Tags:** unreal-engine\ **Created:** [June 10, 2022, 5:53pm UTC](https://forums.unrealengine.com/t/course-lets-make-a-game-brick-breakers/578887 "2022-06-10T17:53:27Z")\ **Posts on this page:** 1\ **Showing post:** 27
**Author:** ![ozluckystar](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@ozluckystar](https://forums.unrealengine.com/u/ozluckystar)\ **Post date:** [September 6, 2022, 7:03am UTC](https://forums.unrealengine.com/t/course-lets-make-a-game-brick-breakers/578887/27 "2022-09-06T07:03:45Z")
@thunder_shadow I had the same issue. Find the solution and it works just fine for me. The ball is bouncing now > [@Bouncing projectiles have no collision](https://forums.unrealengine.com/t/bouncing-projectiles-have-no-collision/354723/10): > > When actor have DefaultSceneRoot you need to “Set Updated Component” in ConstructionScript. By doing this “Projectile Movement Component” will update the “Collision Component” other than DefaultSceneRoot ,then Collision will work! Other than that I would say that I am looking fairly optimistic about this course. I don’t mind to face with some issues and trying to find answers. It’s also part of the learning process. But the information that I’m getting here is useful and for now, I`m pretty happy with it. --- _[View the full topic](https://forums.unrealengine.com/t/course-lets-make-a-game-brick-breakers/578887)._