iOS: Button with new borderRadius API and viewShadowColor shows shadow even if button is hidden

var win = Ti.UI.createWindow({ backgroundColor: "white", fullscreen: true });

  var button = Ti.UI.createButton({

    borderRadius: "22 22",

    height: 44,

    width: 180,

    backgroundColor: "#eceded",

    title: "Click me",

    viewShadowColor: "4d000000",

    viewShadowOffset: {

      y: 2,

      x: 2,

    },

    viewShadowRadius: 5,

  });

  button.addEventListener("click", () => {

    button.hide();

    setTimeout(() => {

      button.show();

    }, 2000);

  });

  win.add(button);

  win.open();