hi this is the error i saw from recent comment in case it helps?

Exception in BreadthFirstTraverse: System.NullReferenceException: Object reference not set to an instance of an object
at RimWorld.CompAffectedByFacilities.CanPotentiallyLinkTo_Static (Verse.ThingDef facilityDef, IntVec3 facilityPos, Rot4 facilityRot, Verse.ThingDef myDef, IntVec3 myPos, Rot4 myRot) [0x00000] in <filename unknown>:0
at RimWorld.CompAffectedByFacilities.CanPotentiallyLinkTo_Static (Verse.Thing facility, Verse.ThingDef myDef, IntVec3 myPos, Rot4 myRot) [0x00000] in <filename unknown>:0
at RimWorld.CompAffectedByFacilities+<PotentialThingsToLinkTo>c__Iterator1.MoveNext () [0x00000] in <filename unknown>:0
at RimWorld.CompAffectedByFacilities+<>c__Iterator0.MoveNext () [0x00000] in <filename unknown>:0
at RimWorld.CompAffectedByFacilities.LinkToNearbyFacilities () [0x00000] in <filename unknown>:0
at RimWorld.CompAffectedByFacilities.RelinkAll () [0x00000] in <filename unknown>:0
at RimWorld.CompAffectedByFacilities.Notify_LOSBlockerSpawnedOrDespawned () [0x00000] in <filename unknown>:0
at RimWorld.FacilitiesUtility+<NotifyFacilitiesAboutChangedLOSBlockers>c__AnonStorey0.<>m__0 (Verse.Region x) [0x00000] in <filename unknown>:0
at Verse.RegionTraverser+BFSWorker.BreadthFirstTraverseWork (Verse.Region root, Verse.RegionEntryPredicate entryCondition, Verse.RegionProcessor regionProcessor, Int32 maxRegions, RegionType traversableRegionTypes) [0x00000] in <filename unknown>:0
at Verse.RegionTraverser.BreadthFirstTraverse (Verse.Region root, Verse.RegionEntryPredicate entryCondition, Verse.RegionProcessor regionProcessor, Int32 maxRegions, RegionType traversableRegionTypes) [0x00000] in <filename unknown>:0
Verse.Log:Error(String, Boolean)
Verse.RegionTraverser:BreadthFirstTraverse(Region, RegionEntryPredicate, RegionProcessor, Int32, RegionType)
RimWorld.FacilitiesUtility:NotifyFacilitiesAboutChangedLOSBlockers(List`1)
Verse.Room:Notify_RoomShapeOrContainedBedsChanged()
Verse.RegionAndRoomUpdater:NotifyAffectedRoomsAndRoomGroupsAndUpdateTemperature()
Verse.RegionAndRoomUpdater:CreateOrUpdateRooms()
Verse.RegionAndRoomUpdater:TryRebuildDirtyRegionsAndRooms()
Verse.RegionGrid:GetValidRegionAt(IntVec3)
Verse.RegionAndRoomQuery:RegionAt(IntVec3, Map, RegionType)
Verse.RegionAndRoomQuery:RoomAt(IntVec3, Map, RegionType)
Verse.RegionAndRoomQuery:RoomGroupAt(IntVec3, Map)
Verse.GridsUtility:GetRoomGroup(IntVec3, Map)
Verse.GenTemperature:EqualizeTemperaturesThroughBuilding(Building, Single, Boolean)
RimWorld.Building_Door:Tick_Patch1(Object)
Verse.TickList:Tick_Patch2(Object)
Verse.TickManager:DoSingleTick_Patch1(Object)
Verse.TickManager:TickManagerUpdate()
Verse.Game:UpdatePlay_Patch1(Object)
Verse.Root_Play:Update_Patch1(Object)