Procreate Dreams won’t let me move clips

What it says in the title. I’ve been having to copy and paste clips and adjusting their length to move them, which is fine for single photo clips but a nightmare when it comes to flipbooks and audio. Every time I try, it says “action could not be completed”. Closed and reopened the app a dozen times, and it’s only on this specific project. Not sure if I’ve hit some weird setting?