I did not have this problem in the beta version.
When you are in the combat and you try to open the journal (Start button at the Xbox 360 Controller, system Win 10, GOG), the journal opens and closes immediatly. If you open the journal with the keybord (button B), the journal opens and remains open until the key is pressed again.
Outside of combat, the journal opens and remains open until the start button of the Xbox controller is pressed again.
This problem also exists after restarting the game.