Thank you for playing!
Because Tailor Tales is still in the beta stages, that means each release will have something new or removed from the previous version. Old save versions won't work and you'll have to start a new game (you will lose your designs). I will always leave an option for beta players to begin a new release with some extra gold and exp, and with all of the previous chapters unlocked. But your designs are lost.
When Tailor Tales reaches the official demo status, that's when updates won't be breaking your save file, and you won't be losing your progress anymore :)
I'm pretty close to an official demo!