Replacing door instead wall causes this bug for me

[ghost]

Exception ticking Door116459: System.NullReferenceException: Object reference not set to an instance of an object at Verse.GridsUtility.GetThingList (Verse.IntVec3 c, Verse.Map map) [0x00000] in <8c412d4a16f94d4cb337e846f2dee469>:0 at RimWorld.Building_Door.Tick () [0x000a0] in <8c412d4a16f94d4cb337e846f2dee469>:0 at (wrapper dynamic-method) Verse.TickList.Verse.TickList.Tick_Patch0(Verse.TickList) UnityEngine.StackTraceUtility:ExtractStackTrace () (wrapper dynamic-method) Verse.Log:Verse.Log.Error_Patch1 (string) (wrapper dynamic-method) Verse.TickList:Verse.TickList.Tick_Patch0 (Verse.TickList) (wrapper dynamic-method) Verse.TickManager:Verse.TickManager.DoSingleTick_Patch3 (Verse.TickManager) Verse.TickManager:TickManagerUpdate () (wrapper dynamic-method) Verse.Game:Verse.Game.UpdatePlay_Patch1 (Verse.Game) (wrapper dynamic-method) Verse.Root_Play:Verse.Root_Play.Update_Patch0 (Verse.Root_Play)