text position keeps shifting in game

[tacit jetty]

So I created a TextMeshPro text on my canvas and I want to control its position and scale through a script.

So I wrote this _screenText.transform.position = new Vector3(_posX, _posY, 0);

Where _posX = 0 and _posY = -160

However, within the game, the text moves to this position (-400, -291, 0)

Any idea why?

[limpid gorge]

use the rect transform's anchoredPosition instead for UI stuff