On a similar note to the above, whenever I play with the 2p/3pt/upt, if I have a unit on auto-scout, it comes up with the "do you want to declare war?!" message whenever it overlaps with another civ's unit, and I'm pretty sure I can not manually move my unit to the same tile because of the message too (but I do not remember if it's been a problem, so I'm not mentioning it as a problem in this instance). It is more of an annoyance than an actual bug, but I'd thought I'd mention it in case I'm the only one who's had it or if it's a known issue that can't be fixed easily/at all.