Honestly I do not believe some characters need a nerf reverse.
Dio for example was a ridiculously unbalanced character about others. With extreme ease of play and damage, becoming the most used character by only owning a special ability that can be used without limits.
What the characters really need is difficulty, and in this difficulty the damage is compensated. That is, they need systems more worked according to their concepts.
As much as many characters have this and I know (Lire) the Staff is already working at its maximum, it is and was already aware of such needs. However there is not only this to be done in the game.
So we need to be more patient.
Have you solved this yet? We've been working on some launcher related features in order to lessen the problem people have with the redistributes and we've sort of forgot about updater.exe (Oops!) but we are working on getting everything resolved ASAP.
If you haven't fixed it yet, are you able to download the following file(s) and try to see if they make a difference?
Furthermore, we apologize for that 10 minutes restriction, I personally am not sure why that is enabled and I'm sorry it prevented you from getting quick support as you wanted. x_x I'll ask the administrators to see why it's like that.