LIFT / ELEVATOR bug

Hello,

I really dont know, but you are a robot or you are just trolling me…
I know how to do lift by many ways, but it does not running properly…

just check my videos:

1. problem: I cant jump when lift is moving up faster than ± 3 meters per second

2. problem: Character is stuck in lift when lift is moving up or hovered above lift when lift is moving down