Breaking a line bug in iOS App

Steps to reproduce

Breaking a line (entering a carriage return)

Expected result

Make a new line with bullet, a cursor is in a head of the new line.

Actual result (always)

Make a new line with bullet, and more new line with no bullet.
A cursor is in the second line (no bullet).

Environment

iOS app v1.4.11 (and maybe some earlier version).

This bug only appears on iPad mini 4 with iOS 14.3, does not appear on iPhone SE2 with iOS 14.3 or other environments(Windows app and Web).


Additional information

Short movie here:
https://1drv.ms/v/s!AtNlxtZC52lDg5wSXIu22wfIBo7ZIA?e=cnJ5Fh