Has anyone found a fix for this? I have the same error but its only been happening in the past 2 weeks so a good month after the last post on this thread. My mod list is:
+ Harmony (Bannerlord.Harmony, v2.2.2.145)
+ UIExtenderEx (Bannerlord.UIExtenderEx, v2.6.0.0)
+ ButterLib (Bannerlord.ButterLib, v2.6.3.0)
+ Mod Configuration Menu v5 (Bannerlord.MBOptionScreen, v5.5.5.0)
+ Native (Native, v1.0.3.0)
+ SandBox Core (SandBoxCore, v1.0.3.0)
+ Sandbox (Sandbox, v1.0.3.0)
+ CustomBattle (CustomBattle, v1.0.3.0)
+ StoryMode (StoryMode, v1.0.3.0)
+ Birth and Death Options (BirthAndDeath, v1.0.3.0)
+ MoreArenas (MoreArenas, e1.5.5.0)
+ Dismemberment (Plus) for v1.0.3 (DismembermentPlus, v2.0.6.0)
+ Xorberax's Legacy for v1.0.3 (XorberaxLegacy, v1.0.5.0)
+ Governors Handle Issues (GovernorsHandleIssues, v1.0.2.7)
+ Fourberie (Fourberie, v10.0.1.0)
+ RTS Camera (RTSCamera, v4.1.19.0)
+ Bodyguards (Bodyguards, v1.0.2.0)
+ RelentlessSmith (RelentlessSmith, v1.0.1.0)
+ Enter Castle/Town With Horse (Aragas.CastleTownWithHorse, v1.0.9.0)
+ Larger Horses (Larger Horses, e1.5.2.0)
+ Detailed Character Creation (zzCharacterCreation, v1.4.7.14

+ Party Screen Enhancements (PartyScreenEnhancements, v1.6.11.0)
+ DestroyKingdom (DestroyKingdom, v0.3.2.0)
+ Diplomacy (Bannerlord.Diplomacy, v1.2.4.0)
+ Better Attributes (BetterAttributes, v2.4.0.0)
+ Hot Butter (hotbutter, v2.0.2.0)
+ Hot Butter Scenes (hotbutterscenes, e1.8.0.0)
+ KingdomStrategiesCommand (KingdomStrategiesCommand, v1.4.6.0)
+ Captivity Events (zCaptivityEvents, v1.0.3.103

+ KLBShackles (KLBShackles, e1.5.6.0)
+ Default Captivity Events (zCEDefaults, v1.0.3.103

+ BC Captor Gear and Girls (BCCaptorGear, v1.0.0.0)
+ OnGovernorChangedWorkAround (OnGovernorChangedWorkAround, e1.1.0.0)
+ OnHeroHealedWhileWaitingWorkAround (OnHeroHealedWhileWaitingWorkAround, e2.0.0.0)
I feel like it has to be to do with a mod I have installed approx 2-3 weeks ago and so the likely culprits would be Fourberie, Captivity Events, Hot Butter, BC Captor Gear and Girls, KLB Shackles, Detailed Character Creation, Better Attributes. That would be a shame as I'm particularly enjoying the first 5.