Great Game, but lately has issues

I too have had problems with completing levels, then coming back to it later to find I have been sent back a couple of levels. Twice I had made it past one adventure to the next island, advanced to level 577. Upon opening the game, I had been moved back to 574 which was the previous island. Frustrated, I updated the app & it worked fine at first. I passed 574 for the 3rd time, but now the game never gets past the "game loading" screen. Waiting for a new update...

Syeather about Cookie Jam: Match 3 Games, v5.20.128