Exception from long event: System.NullReferenceException: Object reference not set to an instance of an object [Ref BD1777C8] at Rimefeller.UniversalPipeMapComp.DeregisterPipe (Rimefeller.CompPipe pipe) [0x00006] in <7a8997adddc54d6eadf4be794ba4fced>:0 at Rimefeller.CompPipe.PostDeSpawn (Verse.Map map, Verse.DestroyMode mode) [0x00006] in <7a8997adddc54d6eadf4be794ba4fced>:0 at Verse.ThingWithComps.DeSpawn (Verse.DestroyMode mode) [0x00026] in :0 at Verse.Building.DeSpawn (Verse.DestroyMode mode) [0x0000e] in :0 - POSTFIX LightsOut: Void LightsOut.Patches.Power.CleanupBuildingsOnDespawn:Postfix(ThingWithComps __instance) at RimWorld.GravshipUtility.GenerateGravship (RimWorld.Building_GravEngine engine) [0x00084] in :0 at Verse.WorldComponent_GravshipController.RemoveGravshipFromMap (RimWorld.Building_GravEngine engine) [0x00014] in :0 at Verse.WorldComponent_GravshipController+<>c__DisplayClass43_0.b__2 () [0x00060] in :0 at Verse.LongEventHandler.UpdateCurrentSynchronousEvent (System.Boolean& sceneChanged) [0x0001d] in :0 Exception processing alert RimWorld.Alert_NeedMeditationSpot: System.NullReferenceException: Object reference not set to an instance of an object [Ref CF271A84] at Verse.GenGrid.Walkable (Verse.IntVec3 c, Verse.Map map) [0x00000] in :0 at Verse.GenGrid.Standable (Verse.IntVec3 c, Verse.Map map) [0x00000] in :0 at RimWorld.MeditationUtility.IsValidMeditationBuildingForPawn (Verse.Building spot, Verse.Pawn pawn) [0x0001d] in :0 at RimWorld.Alert_NeedMeditationSpot.get_Targets () [0x00099] in :0 at RimWorld.Alert_NeedMeditationSpot.GetReport () [0x00000] in :0 at RimWorld.Alert.Recalculate () [0x00012] in :0 at RimWorld.AlertsReadout.CheckAddOrRemoveAlert (RimWorld.Alert alert, System.Boolean forceRemove) [0x00000] in :0