Infinite war declararions + vassal won't offer open borders

[Tatran]

Vassal open borders bug.
The AP forced some AIs to stop trading with me.
Suryavarman and Shaka opened borders after 10? turns, but Justinian, vassal of Shaka,
didn't offered OB for an infinite time. ASAP he was a free state again the open borders
option was available again.


Negotiating peace between AIs (Vikings <-> Egypt) don't give a forced 10 peace turns.
Next turn the same AI (Vikings) declared war at the same enemy (Egypt).
So, I wasted a lot of techs and gold for nothing.

 

[Bhruic]

Can you label the saves so I know which one is illustrating which problem?

Bh

 

[Tatran]

First an addition to the vassal comment.
Montezuma capitulated to Mali and declared on me, but
after 10 turns of peace he offered open borders.

1) 1702 AD save
Open borders after 10 turns with Suryavarman and Shaka, but not with Justinian. (AP resolution)

2) 1712 AD save
Sum of war bribes (Vikings + Shaka) by Suryavarman against Egypt.

3) 1722 AD save
Byzantines are free again and Justinian opened borders again.