Blurred text when activating Canvas

Image as it should be:

ImageblurredafterfirstturningoffCanvas,andactivatinganotherCanvas:

IusetwoCanvasinthesameScene,oneforlogin,whichstartsenabled,anotherfortherecordthatstartsoff,andwhentheregisterbuttonisclicked,itactivatestheCanvasregistry.

voidTaskOnClick(){CanvasLogin.enabled=false;LoginValue.text="";
        PasswordValue.text = "";
        CanvasRegister.enabled = true;
    }

But after the record button is clicked, the Canvas is blurred, the setting of the two is identical, and one detail: any change in the fields / canvas is rendered correctly ...

Canvas is set to scale by screen size:

Note:

  

The problem is not that Canvas is blurred, rather it is erased   after activating by command.