reverseName settings not reapplying correctly

[noplaneupinthesky]

OK stupid of me with the new albums, only that doesn't explain how all the pre-existing correctly tagged Beethoven, Ludwig van albums are not under B but under L. I have been using the convention "lastname, first names" until this screw up due to buying some music pre-tagged - so the old stuff should continue to behave. Let me make the correction and see what happens.