Because the issue involving third party styles (if read then as corrupted after you try to modify them) and styles from SD1 or Midjay, I took out 4.2a and re-installed 4.1b.
Take in account that this 4.2a release only involve "bugs fixes", but because poor testing is creating new ones. The new styles and sounds will be added with the Pen Drive soon to be release.
I really don't care about the new styles and sounds if I can't modify what already have from other vendors, because 4.2a read them as corrupted.
I am seriously considering a Korg PA3x. I never have issues like this in my Korg PA800.
My recomendation is to wait and DON'T INSTALL 4.2a for now. Release 4.1b is the best so far.