It seems that ASCII characters beyond ASCII character 127 are not supported.
Use the following QML part with indicators example:
SafeText {
        id: mytext36
        objectName: "mytext36"
        color: "#ffffff"
        font.bold: false
        font.italic: false
        font.pixelSize: 12
        height: 20
        x: 539
        y: 0
        opacity: 1.0
        width: 15
        runtimeEditable: true
        text: "å"
        states: [
            State { name: "1"; PropertyChanges {target: mytext36; x: 539; y: 139; opacity: 1.0; color:"#697ef9"}},
            State { name: "2"; PropertyChanges {target: mytext36; x: 539; y: 279; opacity: 1.0; color:"#d7b526"}},
            State { name: "3"; PropertyChanges {target: mytext36; x: 539; y: 419; opacity: 1.0; color:"#de7e04"}},
            State { name: "4"; PropertyChanges {target: mytext36; x: 539; y: 559; opacity: 1.0; color:"#1c6de9"}},
            State { name: "5"; PropertyChanges {target: mytext36; x: 539; y: 699; opacity: 1.0; color:"#335def"}},
            State { name: "6"; PropertyChanges {target: mytext36; x: 539; y: 839; opacity: 1.0; color:"#d32c4d"}},
            State { name: "7"; PropertyChanges {target: mytext36; x: 539; y: 979; opacity: 1.0; color:"#db72af"}}
        ]
        transitions: [
            Transition {
                from: "*"
                to: "*"
                NumberAnimation {
                    properties: "x, y, opacity, color"
                    duration: 1000
                    easing.type: Easing.InOutQuad
                }
            }
        ]
    }
Runtime throws an exception since the glyph is not generated by the tooling.