Expanded map with fixed canvas blurred

Add-ons UIs
1

I created a layout page in the fixed canvas layout. With a widget that can be expanded, the expanded view on the mobile phone / tablet is blurred. It does not matter whether in the browser or the Openhab app.
The error does not occur in the fixed grid layout.
What attitude am I missing?

config:
  layoutType: fixed
  fixedType: canvas
  label: Canvas
  screenWidth: 1920
  screenHeight: 1200
  sidebar: true
  gridEnable: true
  scale: false
blocks: []
masonry: null
grid: []
canvas:
  - component: oh-canvas-item
    config:
      x: 840
      y: 20
      h: 700
      w: 420
      notStyled: true
    slots:
      default:
        - component: widget:window_blinds
          config:
            gOpen: W_Open