I had the problem, now for quite some time, that the Event Tick Node wasn’t called and Simple Move to Location didn’t work.
I found out that this happens, if you create a new Game Mode which inherits from Game Mode Base and you change the Game State Class to Game State and not Game State Base. Game State should only be used if your Game Mode inherits from the old Game Mode, as far is I understand it.
I am not really sure, if it is intended to not work. But as it raises no error message at all, it was quite hard to find for me. This is why I am posting this here.