Why won't CCS advance me to next level?

BVO

I completed level 1177, and level 1178 has a treasure chest on it.  Trying to click the level it only says I must complete the level to get the treasure, but I can't select level 1178 to play it.

StuckInATree

Strange, if you're on Android try clearing the game cache from the "storage" section in the app details. Worked for me when I couldn't get one of the previous challenges to load properly.