I have a large number of audio (MP3) files, hand-entered with Unicode (in this case, Thai) titles, that do not display file names or titles correctly when playing. These should display as, for example, ปราสาทไหว and instead display as ????????. Media Information looks much the same. Meanwhile, the titles appear correctly in Ubuntu Files, but not in Xfe, where they appear as boxes.
I am running Ubuntu 16.04, and this is VLC 2.2.2 Weatherwax.
Not critical, obviously, but annoying. Is there a config change lying somewhere?