At some point i switched the launcher to Development and immediately after to Release. Before getting back to Release I logged out from my account.
When trying to log back in, Username and password get accepted and I insert the 2FA code as was asked to do. When the code gets accepted I get an error as shown in the pic below. Same thing happened with a 2nd account of mine.
Now wheneve i try to log in I get always this error and it gets me back to the log in window.
I continue to have the same issue. I tried logging in during the DDoS attack and have not been able to log on since. I have tried re-installing the launcher, fixing permissions and verifying the shared cache. Notably I can log on to account management, and my Mac laptop can play just fine.