Quote Originally Posted by frogbeastegg
I sold my map, as Brutii, to the Macedonians for 1,000 denarii. Next turn I tried selling it to them again at the same price, just to see if I could. Yes, I could and my treasury swelled happily. Instantly I got a message from the senate telling me my transgrassions would not be tolerated while this sound clip of some chap being beaten played in the background. I blinked in bafflement, then decided it must be because I had swindled my allies, the Macedonians by selling them a map which had not changed because I was not exploring. To test my theory I tried selling them my still unchanged map again next turn for the same price. They brought it and nothing happened. I sold the Macedonians my map for 1,000 denarii each and every turn until war was declared, some 20 turns.

Very odd.
Yes, I think this aspect might be a bit bugged and can be easily exploited. I've decided to only sell my map info once per faction unless I've explored a lot of new territory.

I did have Pontus actually offer trade rights AND map info to me as Seleucids.