djaydino, thank you very much for help!
I made a simple setup with a falling cube just to see how
Get Vector3 XYZ works and found what I did initially is wrong.
Get Vector3 XYZ action store XYZ values correctly when it's on the same state as the action that saves the Vector3 or when there's correct flow between states.
I'm a newbie, so sorry for the panic
Thank you very much!