Why is no one answering my questions?

[AbdoSarmini92]

Thanks for the reply. I saw new questions answered after I posted my questions. That’s mean there are someone online to give answers. But he didn’t reply to my posts and replied to newer posts. That’s why I posted this.

This is the links for my questions.

Can I use the latest version of UE4 for the blueprint course?

Can I use the latest version of UE4 for the blueprint course? Is there any BIG changes if I use the latest one or the 4.20 version?

Weird Collision

I get a weird collision when I hit a projectile sometimes. How I can solve this? Video Link: https://youtu.be/0ovGjWOaqnE [Screenshot (5)] [Screenshot (6)]

What is the point from converting function types?

In this video we learned about pure and impure functions. But what the point from that? Can I still use the normal function without converting it? And why I must convert it anyway?

Make movement smoother

Hello. I added torque to the ball. But the movement too hard. It takes long to move and long to stop. I tried to increase the speed, and it moves fast, but it’s too hard to stop it. How I can make the movement smoother?