quite a bit of people have been having this vent error here: Exception drawing MinifiedThing120432: System.NullReferenceException: Object reference not set to an instance of an object
at RimWorld.Building_Vent.get_Graphic () [0x00000] in <dbe63bde722043a39a8fbe7afeb1fc48>:0
at RimWorld.MinifiedThing.get_Graphic () [0x00012] in <dbe63bde722043a39a8fbe7afeb1fc48>:0
at (wrapper dynamic-method) RimWorld.MinifiedThing.RimWorld.MinifiedThing.DrawAt_Patch1(RimWorld.MinifiedThing,UnityEngine.Vector3,bool)
at Verse.Thing.Draw () [0x00007] in <dbe63bde722043a39a8fbe7afeb1fc48>:0
at (wrapper dynamic-method) Verse.ThingWithComps.Verse.ThingWithComps.Draw_Patch1(Verse.ThingWithComps)
at (wrapper dynamic-method) Verse.DynamicDrawManager.Verse.DynamicDrawManager.DrawDynamicThings_Patch1(Verse.DynamicDrawManager)
Verse.Log:Error(String, Boolean)
Verse.DynamicDrawManager:Verse.DynamicDrawManager.DrawDynamicThings_Patch1(DynamicDrawManager)
Verse.Map:Verse.Map.MapUpdate_Patch2(Map)
Verse.Game:Verse.Game.UpdatePlay_Patch2(Game)
Verse.Root_Play:Update()

the vent icon was working for a long time then disappeared and got errors and slowed my tps to 1

can you please fix it.