Jet wanted to drop a post about another glitch that is again affecting some players, including me. This glitch sees you awarded the 25 Clams for unlocking a Rank, but as soon as you close your game you lose them again. So basically your clam total doesn’t increase.
I know it’s frustrating when a new feature launches and there’s glitches from the off, but support are aware of this and the Rank unlock glitch, so hopefully see a fix soon.
Until then don’t worry as the feature is a permanent addition, and more importantly you can keep collecting medals in the meantime.
~ Russian Tigger