I‘m using an external keyboard from Apple on my iOS of LogSeq.
Hitting the ENTER Key on the keyboard is never providing a fullbreak / newblock consistently. This can be reproduced with the soft keyboard coming up when no hardware keyboard is attached.
Not being able to enter new blocks makes working with LogSeq really hard.
It’s a known bug for a long time, but currently there’s nobody working dedicated on the mobile app. The app needs a major overhaul anyway, which is planned (without a defined start date, though).