Pretty much what the title says. I had a bunch saved in there and now it's all gone. Fortunately I have all the account details written down, so not a huge deal. As this is not mentioned in the patch message I assume it's an unintended bug. I hope the stored usernames and passwords can be retrieved in the next update for the sake of other folks.
yeah, I am having a nice looping issue where its wanting me to constantly change my password. Once is enough DBG, but making me loop with the launcher is a joke!
The main issue that I have with re-entering the my accounts is that each time I enter a new login I have to go in and uncheck the LoN box so it doesn't download them, then I have to log in with that account until the Launchpad closes itself, if I don't log in and let it close itself the LoN uncheck does not stick for that specific account.