There seems to be a bug with 'Set Position'
Every tick UID2PROP Set Sprite Position Mouse.X, Mouse.Y
This only changes the Y property, and to the first parameter, that is the X parameter and not the set Y parameter.
So Set X to 5 and set Y to 20 will result in the sprite's X being unchanged and it's Y being changed to 5 (instead of 20)
UID2PROP 'Set X' and 'Set Y' works correctly individually .