There is a bug, which is going to be fixed in the next patch, where you are blocking from going to the next turn with "Choose Production" for a puppet city. Clicking on the "Choose Production" does nothing, and the only way around it (that I've found) is to annex the city.
Does anyone know of a way to work-around the bug, while waiting for the patch?
Fix for production prompt that sometimes appears with newly created puppet states that could stop the player from being able to end the turn.