Go48Games
I'm not sure why it's not working, it seems to be set up the same as the example except for Mouse instead of Touch (using Touch would accept mouse clicks too with "Use mouse input" set to Yes)
You asked about changing view position before, so is there any scrolling or scaling or layer parallax or anything like that in this Layout? Those can affect the Mouse.X values.
You might need to use Mouse.X(Newsprite.LayerName) so it adjusts the Mouse.X value for that layer.
If that doesn't help, you could send the Mouse.X value to a Text/SpriteFont object on click to confirm it's getting the right position.