Root level exception in OnGUI(): System.NullReferenceException: Object reference not set to an instance of an object
at StockpileStackLimit.HaulPatcher.SetCountLimit (Verse.Pawn,Verse.Thing,Verse.AI.Job&,Verse.IntVec3) <0x0034e>
at StockpileStackLimit.HaulPatcher.Postfix (Verse.Pawn,Verse.Thing,Verse.AI.Job&) <0x0009d>
at (wrapper dynamic-method) Verse.AI.HaulAIUtility.HaulToStorageJob_Patch2 (Verse.Pawn,Verse.Thing) <0x0034a>
at PickUpAndHaul.WorkGiver_HaulToInventory.JobOnThing (Verse.Pawn,Verse.Thing,bool) <0x005d9>
at RimWorld.FloatMenuMakerMap.AddJobGiverWorkOrders (Verse.IntVec3,Verse.Pawn,System.Collections.Generic.List`1<Verse.FloatMenuOption>,bool) <0x00533>
at (wrapper dynamic-method) RimWorld.FloatMenuMakerMap.AddUndraftedOrders_Patch1 (UnityEngine.Vector3,Verse.Pawn,System.Collections.Generic.List`1<Verse.FloatMenuOption>) <0x0036d>
at RimWorld.FloatMenuMakerMap.ChoicesAtFor (UnityEngine.Vector3,Verse.Pawn) <0x0033c>
at RimWorld.FloatMenuMakerMap.TryMakeFloatMenu (Verse.Pawn) <0x001e2>
at RimWorld.Selector.HandleMapClicks () <0x00287>
at RimWorld.Selector.SelectorOnGUI () <0x0001c>
at RimWorld.MapInterface.HandleLowPriorityInput () <0x0006d>
at RimWorld.UIRoot_Play.UIRootOnGUI () <0x002f9>
at Verse.Root.OnGUI () <0x00112>

Verse.Log:Error(String, Boolean)
Verse.Root:OnGUI()

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Root level exception in OnGUI(): System.NullReferenceException: Object reference not set to an instance of an object
at StockpileStackLimit.HaulPatcher.SetCountLimit (Verse.Pawn,Verse.Thing,Verse.AI.Job&,Verse.IntVec3) <0x0034e>
at StockpileStackLimit.HaulPatcher.Postfix (Verse.Pawn,Verse.Thing,Verse.AI.Job&) <0x0009d>
at (wrapper dynamic-method) Verse.AI.HaulAIUtility.HaulToStorageJob_Patch2 (Verse.Pawn,Verse.Thing) <0x0034a>
at RimWorld.WorkGiver_Haul.JobOnThing (Verse.Pawn,Verse.Thing,bool) <0x00053>
at RimWorld.WorkGiver_HaulGeneral.JobOnThing (Verse.Pawn,Verse.Thing,bool) <0x0006e>
at RimWorld.WorkGiver_Scanner.HasJobOnThing (Verse.Pawn,Verse.Thing,bool) <0x00031>
at RimWorld.FloatMenuMakerMap.AddJobGiverWorkOrders (Verse.IntVec3,Verse.Pawn,System.Collections.Generic.List`1<Verse.FloatMenuOption>,bool) <0x004f7>
at (wrapper dynamic-method) RimWorld.FloatMenuMakerMap.AddUndraftedOrders_Patch1 (UnityEngine.Vector3,Verse.Pawn,System.Collections.Generic.List`1<Verse.FloatMenuOption>) <0x0036d>
at RimWorld.FloatMenuMakerMap.ChoicesAtFor (UnityEngine.Vector3,Verse.Pawn) <0x0033c>
at RimWorld.FloatMenuMakerMap.TryMakeFloatMenu (Verse.Pawn) <0x001e2>
at RimWorld.Selector.HandleMapClicks () <0x00287>
at RimWorld.Selector.SelectorOnGUI () <0x0001c>
at RimWorld.MapInterface.HandleLowPriorityInput () <0x0006d>
at RimWorld.UIRoot_Play.UIRootOnGUI () <0x002f9>
at Verse.Root.OnGUI () <0x00112>

Verse.Log:Error(String, Boolean)
Verse.Root:OnGUI()



Only happens with Stockpile Stack Limit. I also posted this at SSL comment section.
I also have XXL Stacks and pick up and haul but it works when i deactivate Stockpile Stack Limit