Why is Clip Zip renaming my folders and music files?

This was not the original behavior in the last firmware, why was this changed?   On a 32gb card, i now have close to 50% of the folders renamed.  I don’t think recopying 15gb is a reasonable workaround.  I"m going to try to rename the folders.  (now MSC for some reason doesn’t display my folders on the external card…)