Hello @emisme, I'm very sorry about this issue. There was a bug with displaying projects in the last update. Yesterday I submitted an update that solves this issue to Google Play but it looks like it is still in review. Once its approved then please update the app and it should work for you again. Again, I'm sorry about this.
To clarify, your time-lapse projects are still there, but they are just not being displayed due to a bug in the last update.
Thank you for your patience.