Exception in UIRootUpdate: System.NullReferenceException: Object reference not set to an instance of an object
at RimWorld.PlaceWorker_InsideStarship.AllowsPlacing (Verse.BuildableDef,Verse.IntVec3,Verse.Rot4,Verse.Map,Verse.Thing) <0x00108>
at (wrapper dynamic-method) RimWorld.GenConstruct.CanPlaceBlueprintAt_Patch2 (Verse.BuildableDef,Verse.IntVec3,Verse.Rot4,Verse.Map,bool,Verse.Thing) <0x0183f>
at (wrapper dynamic-method) RimWorld.Designator_Build.CanDesignateCell_Patch2 (object,Verse.IntVec3) <0x000ac>
at RimWorld.Designator_Place.SelectedUpdate () <0x0016f>
at RimWorld.Designator_Build.SelectedUpdate () <0x0001c>
at Verse.DesignatorManager.DesignatorManagerUpdate () <0x0005d>
at (wrapper dynamic-method) RimWorld.MapInterface.MapInterfaceUpdate_Patch2 (object) <0x000b2>
at RimWorld.UIRoot_Play.UIRootUpdate () <0x0007a>

Verse.Log:Error(String, Boolean)
RimWorld.UIRoot_Play:UIRootUpdate()
Verse.Root:Update_Patch1(Object)
Verse.Root_Play:Update()


When attempting to place the casket, the blueprint will not show and I cannot place anything unless the space is not enclosed.