It appears a few standard UTF-8/16 characters are not displayed in Mixvibes Cross (all versions are probably affected)
I have not tested this under Windows, only OSX for now.
✝, the album from Justice, uses a standard character which works as a folder name under Windows and OSX, and is supported by all applications, except Mixvibes.
However, as most of the taggers allow any characters sets, we've tried to detect the encoding for each tag. Unfortunately, the encoding detection is a pity ! It's quite impossible to be 100% sure of a decision with small text chunk (as in tags). This results in having some japanese characters (e.g) displayed instead of some "é" or "è", etc.
We're aware it's a real problem, and we'll find a solution !
Concerning the "✝", I must admit we never tested it ! I don't know if this char has any particularity. We'll check if it's a decoding issue or just a display issue (the font used might just not have this char ...).