I downloaded the source code and when jumping i got... transform.position assign attempt for 'Player 1 (qa)' is not valid. Input position is { -Infinity, Infinity, Infinity }. UnityEngine.Transform:set_position (UnityEngine.Vector3) Interpolator:InterpolatePosition (single) (at Assets/Scripts/Interpolator.cs:66) Interpolator:Update () (at Assets/Scripts/Interpolator.cs:53) On both i opened the main scene.