Quell not saving "Levels perfect" progress & unlimited coins glitch

Quell is not saving "Levels perfect" progress. I'm playing on a Google Nexus 5 running Android KitKat (4.4). Last night I had earned perfect scores on every level of the first 2 shelves (all gold checks & gold frames), even earned the perfect shelf trophy, before I exited the game, tonight I went to play again & upon starting I found all the gold perfect marks missing. Fortunately it saved the jewels I found, but under progress "Levels perfect" is 0/88, another odd thing is if I replay a level & score perfect again it gives me another coin like I never perfect it before even though the previous moves number is the same. This behavior repeats every time I exit & restart Quell, the "Levels perfect" progress isn't saved but the number of coins earned is, so one is potentially able to earn unlimited free coins.