When you use custom skins, DBCS(2-byte character) is used and cannot launch VLC.
Windows8.1 64bit & windows7 64bit VLC2.2.1 64bit & 32bit cannot launch VLC using custom skins to Windows user name with DBCS. By using any custom skins will not start.
ex C:\Users\すきやき\AppData\Roaming\vlc ↑Windows user name using DBCS