The error message "Numbers of source Raster bands and source color space components do no match" occurs olny in the beta versions, I downgraded jAlbum again to version 14.1.14 and no erros any more. So it might have to do with the beta version.
Happy to hear! I find it positive to see the many improvements to JPEG reading that the TwelveMonkeys library delivers. See their JPEG feature section . It's also performing well. (It loads CMYK JPEGS 10 times faster than the previous library we used for CMYK JPEGs)