Indeed, I'm experiencing the same problem. I updated to the latest version five minutes ago, after receiving an e-mail from Patchou that my problem detailed
here was fixed with the latest version. Unfortunately, I still have logs that I'm unable to open - logs that were broken previous to my upgrade. I'm assuming that the previous problem was caused by Plus! accidentally doing something funny to the password I inputted. Is there any way to figure out what it did, and what it set the password to on those files?
Obviously I don't use the encryption anymore. I wouldn't recommend it, either... one wrong move, and bye-bye.