This is a hotfix to 1.9, primarily to fix bugs with disappearing cores.1.9.1:- Civil War can now only happen once per country.- Peasants' War can now only happen once per country.- Fixed a bug with disappearing cores in overseas provinces and colonial nations.- Buryatia is no longer stuck with nomad units forever.- Claim now correctly gives -25% coring cost and overseas provinces -50%, instead of the other way around.- Fixed a bug where events war_of_the_roses.2 and war_of_the_roses.3 would affect neighbouring provinces not owned by England.1.9.2:- Fixed a bug where allies would not be called to a defensive war if the nation being attacked was already participating in an offensive war.- The Holy Roman Empire will no longer be disbanded when the Protestant League wins the war.For the full 1.9 patch notes, go here