When typing replies the text box does not scroll down as you type. So after a few lines the text starts getting buried under the keyboard. You can't even manually scroll down the page to bring your typing into view.
PROBLEM SOLVED
Somebody must have heard the cries. CONNECT was just updated today July 31 2023 from the Play Store. I tried out the updated version and in another thread, and in this one also, I am able to type as much as I want. And as the typing nears the bottom of the typing box, it automatically scrolls visibly to a new line so you can always see what you're typing. Nothing goes under the keyboard anymore.
Excellent 👍 Kudos and karma to the attentive, responsive developer for fixing this. I can now stick with CONNECT rather than Jerboa.
Actually I think I'm seeing something like that also. I think when I type an original post or even a regular comment, then it's possible to scroll down and see what you're typing. But doesn't work for "replies". In those, after five or six lines everything echoes hidden under the keyboard.
May be a Lemmy problem that the connect app can't overcome. I'm typing this in Jerboa. The reply box here hides text under the keyboard also. Doesn't automatically scroll as it should, but at least in Jerboa you an manually scroll down. In Connect for Lemmy you can't.
I can manually scroll it in connect and it scrolls on the reply too. You should try clearing your cache in your phone settings and giving it a good ol' reboot.