I mentioned this on one of the threads where the new app is being discussed, but it probably got lost among the comments. When I open a box to comment on a thread, then tap the background to shrink the box, maybe to recheck what another poster said, I am unable to access my comment again. It remains as a one line box at the bottom of the screen and refuses to open when I tap it. I then end up having to discard the comment as there is no way back in. It also happens if I go to use one of the generic emojis (not the Mumsnet ones.) I tap the emoji button, type the emoji, then when I tap the keyboard button to resume typing, the comment shrinks to the bottom of the screen and locks me out. This happens on the iPad app. The iPhone app appears to be fine.