I have no idea what's going on with the itch.io app, but the way you're describing it does sound like it might not work on the app anymore, unfortunately. I always work with the website version because the app constantly causes issues with Twine 😭
yeah, i've noticed the app gets iffy with story games. it's weird but i'll just have to suck it up and start over. AToC is like a work of art so i don't mind too much.