Tested with 0.9.5.2

If a folder name contains semicolons, its not possible to add it to the Media Library Music Folders list.
If there are n semicolons, the name is broken into n+1 lines (and the files are not added to the library).

Note that the name is not wrapped but really split in a number of lines: afterwards one has to Remove each resulting line separately, one by one.

This is an unfortunate limitation of current Media Library code. Thanks for pointing this, I'll get it fixed soon. This problem must have existed for a long time, I'm surprised that I don't remember anybody reporting it earlier.

Fixed in 0.9.5.3 final.

Confirmed (of course).
Quick fix!