Hi,
it's not actually a bug or something to discussed, but instead something misleading.
When you start the game, you are ask to enter your credentials to log in ("LOGIN"). After you log in, the button for log out is labeled "Back". If you want to play with your character, you will click the button labeled as "PLAY". But if you don't want to play anymore, or just switch characters (or other reasons), the in-game button for this is labeled as "LOG OUT".
Run ESO -> LOGIN -> Select character -> PLAY -> Enjoying the game
Run ESO <- BACK <- Select character <- LOG OUT <- Enjoying the game
It should be something like this:
Run ESO -> LOGIN -> Select character -> PLAY -> Enjoying the game
Run ESO <- LOG OUT <- Select character <- BACK <- Enjoying the game
It's not a tragedy, but sometimes I accidentally click the "Back" button when I am in Settings menu and want to go back to select character menu.