Same issue. Characters lost. Looked in what I think is the folder in which they are saved, and it's empty. That was quite a lot of progress to be lost.

Saved Directory is empty for me too :( Do you think I lost my lvl 52 character forever ??

bonjour,
meme probleme pour moi.
De plus, les nouveaux personnages que je crée ne sont pas sauvegardés.
bref, le jeux est devenu injouable...

Hello,
I have the same problem.
And when i play a new character, it doesn't saved in mode offline.
Impossible to play...

me too :/