Convert PNG to GeoTIFF: Invalid pixelsize in geotransform array in FME

I’m converting PNG file to GeoTIFF. Here’s the setup that I use in FME:

PNGRaster -> 
    RasterExtractor -> 
        CoordinateSystemSetter -> 
            RasterGeoReferencer -> 
                writer

The settings of RasterGeoReferencer:

But when I try to upload the map to mapbox I get an error: Invalid pixelsize in geotransform array. What is wrong?