Networking, Jumping, Aiming issue

[willyamped]

Hi all. I'm still at the first few videos and I have encountered quite a few problems.

1. Networking: I am using Mirror and there is a problem with the movement synchronisation. Every time the client enters, the two players will float away

2. Jumping: Everytime I jump, the player just floats away and it floats and rotates at the same time

3. Aiming: When I shoot the floor, it shows Cube prototype instead of floor.

Thank you. Really appreciate the help