Disappointing! I downloaded this app in the end of 2020 and loved it! For the past several months it has been glitching every time I open it, from actually showing a previously finished puzzle that goes away and shows my current one, to making me have to redo the last 2 or so pieces I placed. I deleted the app and downloaded again, and the issues continue. I am done with this app, will be deleting and downloading a different one.