Fun but flawed

I can get through 3-4 levels with no problem. Then Ill hit a level where it wont let me finish my moves EVEN if they are legit and follow the rules. Im not sure if its a coding thing--like theres only "one" way to solve the puzzle even though there seems to be many ways. Its very frustrating. I would love to know why or at least have it fixed.

ThePaisleyPeasant about har•mo•ny 3