In my most recent game (GOTM80) going for a diplomatic victory, I'd researched Globalization in order to get delegates from diplomats and started putting my spies in capitals. When I was looking for India to place a spy, only one city was available and it wasn't the capital (they'd lost Delhi). I still had an embassy with them so, in theory, I should have been able to place my diplomat. Any thoughts as to why I wasn't able to place them? (Cost me 20 turns!).