achtung! claims z levels is responsible for this error. And offers to copy it to clipboard, This is from right clicking a comms unit with trade ship nearby

[ghost]

Exception in RimWorld.FloatMenuMakerMap.ChoicesAtFor: System.NullReferenceException: Object reference not set to an instance of an object at AchtungMod.FloatMenuMakerMap_AddJobGiverWorkOrders_Patch.Postfix (Verse.Pawn pawn, AchtungMod.ForcedWork __state) [0x0000e] in <5115af586046446eb35f0ed877695204>:0 at RimWorld.FloatMenuMakerMap.AddJobGiverWorkOrders (UnityEngine.Vector3 clickPos, Verse.Pawn pawn, System.Collections.Generic.List`1[T] opts, System.Boolean drafted) [0x00eb9] in <99518a644a3e4a7ea3fde566568df84a>:0

• transpiler rimworld.moreThanCapable: IEnumerable1 MoreThanCapable.FloatMenuMakerMap_AddUndraftedOrders:Transpiler(IEnumerable1 instructions)
• transpiler net.pardeike.rimworld.mods.achtung: IEnumerable1 AchtungMod.FloatMenuMakerMap_AddJobGiverWorkOrders_Patch:Transpiler(IEnumerable1 instructions, MethodBase original)
• transpiler rimworld.jecrell.doorsexpanded: IEnumerable1 DoorsExpanded.HarmonyPatches:DoorRemoteAddJobGiverWorkOrdersTranspiler(IEnumerable1 instructions)
• prefix ZLevels.Mod: Boolean ZLevels.FloatMenuPatches+FloatMenuMakerMap_AddJobGiverWorkOrders_Patch:Prefix(Vector3 clickPos, Pawn pawn, List`1& opts, Boolean drafted, FloatMenuOption[]& ___equivalenceGroupTempStorage)
• prefix net.pardeike.rimworld.mods.achtung: Void AchtungMod.FloatMenuMakerMap_AddJobGiverWorkOrders_Patch:Prefix(Pawn pawn, ForcedWork& __state)
• postfix net.pardeike.rimworld.mods.achtung: Void AchtungMod.FloatMenuMakerMap_AddJobGiverWorkOrders_Patch:Postfix(Pawn pawn, ForcedWork __state) at RimWorld.FloatMenuMakerMap.AddUndraftedOrders (UnityEngine.Vector3 clickPos, Verse.Pawn pawn, System.Collections.Generic.List`1[T] opts) [0x000d9] in <99518a644a3e4a7ea3fde566568df84a>:0
• prefix OskarPotocki.VFECore: Boolean AnimalBehaviours.VanillaExpandedFramework_FloatMenuMakerMap_AddUndraftedOrders_Patch:AvoidGeneralErrorIfPawnIsAnimal(Pawn pawn) at RimWorld.FloatMenuMakerMap.ChoicesAtFor (UnityEngine.Vector3 clickPos, Verse.Pawn pawn, System.Boolean suppressAutoTakeableGoto) [0x000f3] in <99518a644a3e4a7ea3fde566568df84a>:0
• prefix rimworld.moreThanCapable: Void MoreThanCapable.FloatMenuMakerMap_ChoicesAtFor:Prefix()
• postfix rimworld.moreThanCapable: Void MoreThanCapable.FloatMenuMakerMap_ChoicesAtFor:Postfix()
• postfix net.pardeike.rimworld.mods.achtung: Void AchtungMod.FloatMenuMakerMap_ChoicesAtFor_Postfix:Postfix(List`1 __result, Vector3 clickPos, Pawn pawn)
• postfix OskarPotocki.VFECore: Void VFE.Mechanoids.HarmonyPatches.FloatMenuMakerMap_ChoicesAtFor_Patch:Postfix(List`1& __result, Vector3 clickPos, Pawn pawn, Boolean suppressAutoTakeableGoto)
• postfix rjw: List1 rjw.RMB_Menu:ChoicesAtFor(List1 __instance, Vector3 clickPos, Pawn pawn, Boolean suppressAutoTakeableGoto)
• finalizer net.pardeike.rimworld.mods.achtung: Exception AchtungMod.FloatMenuMakerMap_ChoicesAtFor_Finalizer:Finalizer(Exception exception, List`1& result)

[Labrador52]

Me too, but I am selecting pawn, and then right-clicking anywhere will report an error