Text on the user interface is exactly vertical but carved at an angle to vertical of about 3degrees. It appears the text has been pushed at the top to the left while still fixed at the bottom. So rectangles become parallelograms. Is it possible an italic treatment has snuck in somehow.
What model CNC? Have you verified the movement is square? To do this jog the cnc a specific distance into each of the 4 corners of a rectangle, mark the position, and then measure diagonally.
Likely the cnc is not built correctly resulting in the non-square movement.