Bug: Completed level 522 (3 stars), played 523 once, returned to 522

Cupcake Mania 1.5.2
IPhone 6
iOS 9.3.1

I completed level 522 with three stars and advanced to level 523. I believe that I won the 150 ticket prize at this time, too. After playing level 523 one time I was forced to return to level 522 with the message "You have to complete all previous levels to unlock this level."

My player icon is pointing to level 523 and the level icon is not greyed out but my stars for level 522 are missing.

Now, playing level 522 doesn't give me any coupons. Frustrating!

This is not the first time I've experienced this problem. It happened a few levels ago but I didn't have all the details at that time.

I am sorry! Please send an email to support@storm8.com for assistance with your game.