Get custom property in addLayer ‘layout’ – works selectively

I’m using Mapbox GL JS to create custom maps with travel-tours and I have following “strange” error:

That’s my “code”:

const transportIconGeoJsonData = {
    'type': 'FeatureCollection',
    'features': [
        {
            'type': 'Feature',              
            'geometry': {
                'type': 'Point',
                'coordinates': [-59.492456, 13.074603]
            },
            'properties': {
                'icon': 'planeIcon',
                'rotate': true,
                'alignment': 'map'
            }
        },
        {
            'type': 'Feature',              
            'geometry': {
                'type': 'Point',
                'coordinates': [-60.992936, 14.020228]
            },
            'properties': {
                'icon': 'shipIcon',
                'rotate': false,
                'alignment': 'viewport'
            }
        },
    ]
};


map.on('load', () => {
    map.addSource('transportSourceIcon', {
        'type': 'geojson',
        'data': transportIconGeoJsonData
    });

    map.addLayer({
        id: 'transport-icon',
        type: 'symbol',
        source: 'transportSourceIcon',
        layout: {
            'icon-image': ['get', 'icon'], // <- works perfectly!
            'icon-size': 0.5,
            'icon-rotate': ['get', 'rotation'], // <- works perfectly!
            'icon-rotation-alignment': ['get', 'alignment'], // <- does not work ...
            'icon-allow-overlap': true,
            'icon-ignore-placement': true
        }
    });
});

I’m able to get properties “icon” and “rotation” but not “alignment”.
Console show’s:

Error: layers.transport-icon.layout.icon-rotation-alignment: data expressions not supported

How is it possible? What am I missing?!

Thanks for help!

If I try to output property manually in console like:
console.log(transportIconGeoJsonData.features[0].properties.alignment);

Work’s perfectly and show’s “map” or “viewport” (if ..features.[1])