This is a big one. Multiplayer games take hours to start even though all players have picked tribe. Everyone I know who plays the game has this same problem. Once the game starts is runs smoothly, it is just at the initial setup that the game gets stuck for hours and hours.
When everyone has picked their tribe it sents a notification to the first player that it is their turn, but then when they go into the app the game says it is waiting on someone else (which is not true). We all have tried close and re-opening the app and re-installing the app, and the problem persists.