Bit of an issue, some mod maps generate, some don't. The ruins from MO won't generate, but cultist maps will generate with them. The maps load, but any ruins won't exist.
Mod list is fuller than -insert example-, here's an error log that popped after generating.

Error in GenStep: System.NullReferenceException: Object reference not set to an instance of an object
[Ref 20FB9E4B]
at GenevaChecklist.ApplyHarmonyPatches.PostTrapSpawned (RimWorld.Building_Trap __instance, Verse.Map map, System.Boolean respawningAfterLoad) [0x0000e] in <69a85c975d6e4019ace5145827a240f5>:0
at RimWorld.Building_Trap.SpawnSetup (Verse.Map map, System.Boolean respawningAfterLoad) [0x00052] in <d2f9716cc2ac4cda9c2a174cc147bf37>:0
- POSTFIX thatHitmann.GenevaChecklist: Void GenevaChecklist.ApplyHarmonyPatches:PostTrapSpawned(Building_Trap __instance, Map map, Boolean respawningAfterLoad)
at RimWorld.Building_TrapDamager.SpawnSetup (Verse.Map map, System.Boolean respawningAfterLoad) [0x00000] in <d2f9716cc2ac4cda9c2a174cc147bf37>:0
at Verse.GenSpawn.Spawn (Verse.Thing newThing, Verse.IntVec3 loc, Verse.Map map, Verse.Rot4 rot, Verse.WipeMode wipeMode, System.Boolean respawningAfterLoad, System.Boolean forbidLeavings) [0x00397] in <d2f9716cc2ac4cda9c2a174cc147bf37>:0
- PREFIX Uuugggg.rimworld.Replace_Stuff.main: Void Replace_Stuff.NewThing.TransferSettings:Prefix(Thing newThing, IntVec3 loc, Map map, Rot4 rot, Boolean respawningAfterLoad, Thing& __state)
- PREFIX SmashPhil.VehicleFramework: Boolean Vehicles.Patch_Construction:RegisterThingSpawned(Thing newThing, IntVec3& loc, Map map, Rot4& rot, Thing& __result, Boolean respawningAfterLoad)
- PREFIX VFEPirates.Mod: Boolean VFEPirates.GenSpawn_Spawn_Patch:Prefix(Thing& newThing, WipeMode& wipeMode, Boolean respawningAfterLoad)
- PREFIX MapPreview.GenLow: Boolean MapPreview.Patches.Patch_Verse_GenSpawn:Spawn_Prefix(Thing newThing, Map map, Thing& __result)
- POSTFIX Uuugggg.rimworld.Replace_Stuff.main: Void Replace_Stuff.NewThing.TransferSettings:Postfix(Thing __result, Thing __state)
at KCSG.SymbolUtils.GenerateBuildingAt (Verse.Map map, Verse.IntVec3 cell, KCSG.SymbolDef symbol, KCSG.StructureLayoutDef layout, RimWorld.Faction faction, Verse.ThingDef wallStuff) [0x003f9] in <f3cb894e648f4ccdb4d57a4ebd508d5b>:0
at KCSG.SymbolUtils.Generate (KCSG.SymbolDef symbol, KCSG.StructureLayoutDef layout, Verse.Map map, Verse.IntVec3 cell, RimWorld.Faction faction, Verse.ThingDef wallForRoom) [0x000f2] in <f3cb894e648f4ccdb4d57a4ebd508d5b>:0
at KCSG.LayoutUtils.Generate (KCSG.StructureLayoutDef layout, Verse.CellRect rect, Verse.Map map, RimWorld.Faction factionOverride, System.Boolean forceNullFaction) [0x0009a] in <f3cb894e648f4ccdb4d57a4ebd508d5b>:0
at KCSG.GenStep_CustomStructureGen.Generate (Verse.Map map, Verse.GenStepParams parms) [0x001d9] in <f3cb894e648f4ccdb4d57a4ebd508d5b>:0
at Verse.MapGenerator.GenerateContentsIntoMap (System.Collections.Generic.IEnumerable`1[T] genStepDefs, Verse.Map map, System.Int32 seed, System.Boolean stepDebugger) [0x001c6] in <d2f9716cc2ac4cda9c2a174cc147bf37>:0
- PREFIX QF_Patch: Boolean QuestEditor_Library.Patch_ExtraGenStepDefs:postfix(IEnumerable`1& genStepDefs)
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch3 (string)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.MapGenerator.GenerateContentsIntoMap_Patch1 (System.Collections.Generic.IEnumerable`1<Verse.GenStepWithParams>,Verse.Map,int,bool)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.MapGenerator.GenerateMap_Patch4 (Verse.IntVec3,RimWorld.Planet.MapParent,Verse.MapGeneratorDef,System.Collections.Generic.IEnumerable`1<Verse.GenStepWithParams>,System.Action`1<Verse.Map>,bool,bool)
Verse.GetOrGenerateMapUtility:GetOrGenerateMap (RimWorld.Planet.PlanetTile,Verse.IntVec3,RimWorld.WorldObjectDef,System.Collections.Generic.IEnumerable`1<Verse.GenStepWithParams>,bool)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:RimWorld.Planet.CaravanArrivalAction_VisitSite.DoEnter_Patch0 (RimWorld.Planet.CaravanArrivalAction_VisitSite,RimWorld.Planet.Caravan,RimWorld.Planet.Site)
RimWorld.Planet.CaravanArrivalAction_VisitSite/<>c__DisplayClass8_0:<Arrived>b__0 ()
Verse.LongEventHandler:UpdateCurrentSynchronousEvent (bool&)
Verse.LongEventHandler:LongEventsUpdate (bool&)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Root.Update_Patch2 (Verse.Root)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Root_Play.Update_Patch1 (Verse.Root_Play)


I'm rarted, any help fellas?