Image for prorety not found

[lv913]

Hi, I have downloaded my current face to a bin file and decompressed it using WatchFace.exe.
When I import my json file to WF editor, I receive the error "Image for prorety not found" and no preview is displayed.
Please see my json:

{
  "Background": {
    "Image": {
      "X": 0,
      "Y": 0,
      "ImageIndex": 0
    },
    "Preview": {
      "X": 34,
      "Y": 13,
      "ImageIndex": 1
    }
  },
  "Time": {
    "Hours": {
      "Tens": {
        "X": 90,
        "Y": 36,
        "ImageIndex": 2,
        "ImagesCount": 10
      },
      "Ones": {
        "X": 130,
        "Y": 36,
        "ImageIndex": 2,
        "ImagesCount": 10
      }
    },
    "Minutes": {
      "Tens": {
        "X": 91,
        "Y": 102,
        "ImageIndex": 2,
        "ImagesCount": 10
      },
      "Ones": {
        "X": 130,
        "Y": 102,
        "ImageIndex": 2,
        "ImagesCount": 10
      }
    },
    "AmPm": {
      "X": 138,
      "Y": 14,
      "ImageIndexAMCN": 12,
      "ImageIndexPMCN": 13,
      "ImageIndexAMEN": 12,
      "ImageIndexPMEN": 13
    },
    "Unknown9": 0
  },
  "Activity": {
    "Steps": {
      "TopLeftX": 0,
      "TopLeftY": 0,
      "BottomRightX": 0,
      "BottomRightY": 0,
      "Alignment": 0,
      "Spacing": 0,
      "ImageIndex": 0,
      "ImagesCount": 0
    },
    "Pulse": {
      "TopLeftX": 0,
      "TopLeftY": 0,
      "BottomRightX": 41,
      "BottomRightY": 0,
      "Alignment": 0,
      "Spacing": 0,
      "ImageIndex": 0,
      "ImagesCount": 0
    }
  },
  "Date": {
    "MonthAndDay": {
      "Separate": {
        "Month": {
          "TopLeftX": 90,
          "TopLeftY": 14,
          "BottomRightX": 105,
          "BottomRightY": 26,
          "Alignment": "TopRight",
          "Spacing": 1,
          "ImageIndex": 14,
          "ImagesCount": 10
        },
        "Day": {
          "TopLeftX": 114,
          "TopLeftY": 14,
          "BottomRightX": 129,
          "BottomRightY": 26,
          "Alignment": "TopRight",
          "Spacing": 1,
          "ImageIndex": 14,
          "ImagesCount": 10
        }
      },
      "TwoDigitsMonth": true,
      "TwoDigitsDay": true
    },
    "WeekDay": {
      "X": 26,
      "Y": 14,
      "ImageIndex": 24,
      "ImagesCount": 7
    }
  },
  "StepsProgress": {}
}

I checked the similar issue #32, but in this case I have the "Tens" section.
What should I look for?