fix

common/character_interactions/09_mpo_interactions.txt

@@ -51,6 +51,14 @@
 			}
 			NOT = { this = scope:actor }
 		}
+		AND = {
+			is_independent_ruler = no
+			liege = {
+				any_vassal = {
+					this = scope:recipient
+				}
+			}
+		}
 	}
 
 	is_valid_showing_failures_only = {
@@ -9316,6 +9324,14 @@ join_confederation_interaction = {
 			is_independent_ruler = yes
 			scope:recipient.confederation ?= { is_house_based = no }
 		}
+		AND = {
+			is_independent_ruler = no
+			scope:recipient = {
+				liege = {
+					this = scope:actor.liege
+				}
+			}
+		}
 	}
 
 	is_valid_showing_failures_only = {

common/decisions/dlc_decisions/mpo/mpo_decisions.txt

@@ -366,14 +366,6 @@ call_for_confederation_decision = {
 			}
 			factor = 0.05
 		}
-		#There's already another confederation nearby
-		modifier = {
-			any_confederation = {
-				is_house_based = no # any_confederation_member is not performant for house blocs
-				any_confederation_member = { in_diplomatic_range = root }
-			}
-			factor = 0.1
-		}
 		modifier = {
 			add = 300
 			culture = { has_cultural_parameter = forming_confederations_is_easier }