It's fixed, thank you very much :) My characters are back, even if at level 1. Some have 7 hours of playtime (as old as 4.0 over there), was more bummed about missing them than their exp, which can be farmed again. I reported in a previous comment days ago the "invisible" color missing from the palette, but now it's also working again as intended. Excited to try out the combo of news saying what the levels actually drop and the reduced prices in the boost shop.
On a unrelated note, may I ask you if you're planning to also add new clothes in the future?