Error while generating pawn. Rethrowing. Exception: System.InvalidCastException: Specified cast is not valid.
[Ref D9830153]
 at Verse.Find.get_MainButtonsRoot () [0x00005] in <630e2863bc9a4a3493f2eff01e3a9556>:0
 at Verse.Find.get_MainTabsRoot () [0x00000] in <630e2863bc9a4a3493f2eff01e3a9556>:0
 at Verse.TickManager.get_NotPlaying () [0x00000] in <630e2863bc9a4a3493f2eff01e3a9556>:0
 at BigAndSmall.HumanoidPawnScaler.LazyGetCache (Verse.Pawn pawn, System.Int32 scheduleForce) [0x0001d] in <a2988858c1a74c5ea6cb2685eb0c2534>:0
 at BetterPrerequisites.NotifyGenesChanges.Notify_GenesChanged_Postfix (Verse.GeneDef addedOrRemovedGene, RimWorld.Pawn_GeneTracker __instance) [0x00015] in <a2988858c1a74c5ea6cb2685eb0c2534>:0
 at RimWorld.Pawn_GeneTracker.Notify_GenesChanged (Verse.GeneDef addedOrRemovedGene) [0x006cf] in <630e2863bc9a4a3493f2eff01e3a9556>:0
     - POSTFIX RedMattis.BetterPrerequisites: Void BetterPrerequisites.NotifyGenesChanges:Notify_GenesChanged_Postfix(GeneDef addedOrRemovedGene, Pawn_GeneTracker __instance)
 at RimWorld.Pawn_GeneTracker.AddGene (Verse.Gene gene, System.Boolean addAsXenogene) [0x0024a] in <630e2863bc9a4a3493f2eff01e3a9556>:0
 at RimWorld.Pawn_GeneTracker.AddGene (Verse.GeneDef geneDef, System.Boolean xenogene) [0x00027] in <630e2863bc9a4a3493f2eff01e3a9556>:0
 at Verse.PawnGenerator.GenerateGenes (Verse.Pawn pawn, RimWorld.XenotypeDef xenotype, Verse.PawnGenerationRequest request) [0x002c5] in <630e2863bc9a4a3493f2eff01e3a9556>:0
     - POSTFIX RedMattis.BetterPrerequisites: Void BigAndSmall.GeneSetupHarmonyPatches:GenerateGenes_Postfix(Pawn pawn, XenotypeDef xenotype, PawnGenerationRequest request)
 at Verse.PawnGenerator.TryGenerateNewPawnInternal (Verse.PawnGenerationRequest& request, System.String& error, System.Boolean ignoreScenarioRequirements, System.Boolean ignoreValidator) [0x00409] in <630e2863bc9a4a3493f2eff01e3a9556>:0
 at Verse.PawnGenerator.GenerateNewPawnInternal (Verse.PawnGenerationRequest& request) [0x0009d] in <630e2863bc9a4a3493f2eff01e3a9556>:0
     - POSTFIX RedMattis.BetterPrerequisites: Void BigAndSmall.GenerateNewPawnInternal:GenerateNewPawnInternalPrefix(Pawn& __result, PawnGenerationRequest& request)
 at Verse.PawnGenerator.GenerateOrRedressPawnInternal (Verse.PawnGenerationRequest request) [0x00136] in <630e2863bc9a4a3493f2eff01e3a9556>:0
 at Verse.PawnGenerator.GeneratePawn (Verse.PawnGenerationRequest request) [0x0000d] in <630e2863bc9a4a3493f2eff01e3a9556>:0
     - TRANSPILER net.pardeike.rimworld.lib.harmony: IEnumerable`1 VisualExceptions.ExceptionsAndActivatorHandler:Transpiler(IEnumerable`1 instructions, MethodBase original)
     - POSTFIX RedMattis.BetterPrerequisites: Void BigAndSmall.PregnancyPatches:GeneratePawnPostfix(Pawn __result, PawnGenerationRequest request)
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch0 (string)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.PawnGenerator.GeneratePawn_Patch1 (Verse.PawnGenerationRequest)
RimWorld.Faction:TryGenerateNewLeader ()
RimWorld.FactionGenerator:NewGeneratedFaction (RimWorld.FactionGeneratorParms)
RimWorld.FactionGenerator:CreateFactionAndAddToManager (RimWorld.FactionDef)
RimWorld.FactionGenerator:AddFactionToManager (RimWorld.FactionDef)
RimWorld.FactionGenerator:GenerateFactionsIntoWorld (System.Collections.Generic.List`1<RimWorld.FactionDef>)
RimWorld.Planet.WorldGenStep_Factions:GenerateFresh (string)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:RimWorld.Planet.WorldGenerator.GenerateWorld_Patch0 (single,string,RimWorld.Planet.OverallRainfall,RimWorld.Planet.OverallTemperature,RimWorld.Planet.OverallPopulation,System.Collections.Generic.List`1<RimWorld.FactionDef>,single)
Verse.Root_Play:SetupForQuickTestPlay ()
XenoPreview.XenoPreviewWindow:DrawPawnPortrait (Verse.Pawn,UnityEngine.Rect,Verse.Rot4)
XenoPreview.XenoPreviewWindow:DrawLayout (UnityEngine.Rect,System.Collections.Generic.List`1<Verse.GeneDef>)
XenoPreview.XenoPreviewWindow:DoWindowContents (UnityEngine.Rect)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Window.InnerWindowOnGUI_Patch0 (Verse.Window,int)
UnityEngine.GUI:CallWindowDelegate (UnityEngine.GUI/WindowFunction,int,int,UnityEngine.GUISkin,int,single,single,UnityEngine.GUIStyle)