Missing drawing? – Artbook - Paint by Number Review

This game is really great and all, but then something weird happened. I colored one of those surprise pictures and it looked like a cat, which I loved because I love cats. A few minutes later the app started bugging, and when I looked in the section where all my coloring pages are kept, it wasn’t there. I looked in the surprise section and looked at all them, and it still wasn’t there! This made me sad and kinda disappointed. If the creators of the game are reading this, please tell me how to get it back.
Review by Violetflowers28 on Artbook - Paint by Number.