Daniel, it’s a miracle! Setting ‘Fixed number of systems per frame’ option to 1 made everything back to normal. Input notes work as it should. Thanks so much! Also the lyric input is at normal speed now, which was very slow as well before. I am still working in Page view btw. I like that better than Galley view. Btw, does this mean that changing this frame setting will always slow down the note input or is this some kind of bug?