Также конечно были и другие вопросы

Также конечно были и другие вопросы по регистрации, которые остались без ответа.

Результаты (английский) 1:

Also of course there were other registration questions which remained unanswered.

Результаты (английский) 2:

Also of course there were other questions about registration, which remained unanswered.

Результаты (английский) 3:

Also of course there have been other questions on registration, which had been left unanswered.