Mixing sdcard and spi2.send fails

I'm working on a function to draw bmp-files to ILI9341 display.
Idea is to read bmp file from local drive and send to display.

    for(var i = 0; i < img.height; i++){
      bmp = E.toArrayBuffer(file.read(img.width + img.width));
      spi.send(bmp.buffer);
    }

Data sent to SPI is somehow corrupted.
Checked sending color red and its corrupted.
Uncommented file.read and its working fine.

Is there a problem using sdCard and SPI2 at the same time ?