Editor on iPad doesn’t work as expected

The editor doesn’t accept key presses always. I need to close and open the app several times to be able to write at times. The toolbar actions won’t work sometimes. The dropdown menus in toolbar, like heading selection, stopped working completely since the last update. They don’t open at all. Selecting blocks is very temperamental. When you select them, the buttons on the selection toolbar doesn’t register clicks properly. To be able to delete things I need to scroll down to an empty area, otherwise they either select or deselect the blocks which are behind this button.