I keep putting Argentina in my Sphere. But it keeps getting out of it. There are no other GPs able to kick it out of my Sphere - none of them are above Cordial, so they're not doing it. Every time I reload the game, it's not in my Sphere any more, and I have to start over with it. I plan on turning the game off from time to time, shutting down the computer when I'm not using it; so should I bother putting Argentina in my Sphere again, because it seems like a waste to have to keep wasting Diplomatic Influence on it only to keep seeing this after a short period of time.
I've tried to think of possible reasons why this is happening. Could there be a maximum of countries you can have in your Sphere, and when you reload the game, it kicks some out of it thinks you have too many? But the UK has around 30 countries in its Sphere, and I only have 7. So it can't be that...