Same problem here. If I save a page and open it again, it always adds ” ” on the second language page before the first title. This addition only comes if I use the visual editor.
(https://www.jmem.ch/base/en/training/schulen)
As a I remember that this issue was existing some years ago with qTranslate as well. After an update is was solved…
I have the same problem on my English/German page. The search field only works on the German pages. If you search for something on a English page you receive the message “Page not found”.