Patch 1.6.3.1 is made according to your requests and includes:
1. The victory ratio of player-supported sides in South America has been increased.
2. Decisions to check wars now require >= 90.0 instead of 100.0 side strength.
3. Changed the conditions of some events to cleanse the party of individual party members.
4. Fixed a bug with faction leadership.
Enjoy the game!