Since the last update, every time I tap a notification to launch a game I'm playing I am unable to complete my turn. Some UI element stops responding. The only consistent version of this is when considering a pact, neither button will accept input. Other times its been pretty random - i can build some things, but not others. One time I was able to complete the whole turn but the end turn button would not work.
Exiting to the lobby and reloading the game always works to fix this.