When I try to raise certain pawns I get this exception :
Exception in Verse.AI.JobDriver.TryActuallyStartNextToil: System.NullReferenceException: Object reference not set to an instance of an object
at CorpseChildren.SurgeryHelper.RegenerateTraits (Verse.Pawn victim, System.Collections.Generic.IEnumerable`1[T] oldTraits) [0x0016f] in <a451c84fdb6241e79388cbd2bb9d4b63>:0
at CorpseChildren.SurgeryHelper.RegenerateTraits (Verse.Pawn newPawn, Verse.Pawn oldPawn) [0x00054] in <a451c84fdb6241e79388cbd2bb9d4b63>:0
at CorpseChildren.JobDriver_ConstructCorpseChild.<MakeNewToils>b__8_1 () [0x003b5] in <a451c84fdb6241e79388cbd2bb9d4b63>:0
at Verse.AI.JobDriver.TryActuallyStartNextToil () [0x00208] in <cd7169108ea74757aa50c5b33d275c15>:0
- transpiler net.pardeike.rimworld.lib.harmony: IEnumerable`1 VisualExceptions.ExceptionsAndActivatorHandler:Transpiler(IEnumerable`1 instructions, MethodBase original)

and then it raises a random pawn and leaves the corpse.

I was able to repro the exception by trying to 'save' the pawn in pawn editor - same problem. It's not a corpse children issue but it's interfering with the reanimate process.

This is the exception from the char editor :

Exception in Verse.Window.InnerWindowOnGUI: System.NullReferenceException: Object reference not set to an instance of an object
at CharacterEditor.MindTool.GetAllNeedsAsSeparatedString (Verse.Pawn p) [0x00009] in <31aeedd25e67475286a4c61702d6ebc1>:0
at CharacterEditor.PresetPawn.SavePawn (Verse.Pawn p, System.Int32 slot) [0x002a4] in <31aeedd25e67475286a4c61702d6ebc1>:0
at CharacterEditor.CEditor+EditorUI+BlockPerson+<>c__DisplayClass64_0.<ASavePawn>b__0 () [0x0003e] in <31aeedd25e67475286a4c61702d6ebc1>:0
at Verse.FloatMenuOption.Chosen (System.Boolean colonistOrdering, Verse.FloatMenu floatMenu) [0x00030] in <cd7169108ea74757aa50c5b33d275c15>:0
at Verse.FloatMenuOption.DoGUI (UnityEngine.Rect rect, System.Boolean colonistOrdering, Verse.FloatMenu floatMenu) [0x00535] in <cd7169108ea74757aa50c5b33d275c15>:0
at Verse.FloatMenu.DoWindowContents (UnityEngine.Rect rect) [0x000fb] in <cd7169108ea74757aa50c5b33d275c15>:0
at Verse.Window.InnerWindowOnGUI (System.Int32 x) [0x001fd] in <cd7169108ea74757aa50c5b33d275c15>:0
- transpiler net.pardeike.rimworld.lib.harmony: IEnumerable`1 VisualExceptions.ExceptionsAndActivatorHandler:Transpiler(IEnumerable`1 instructions, MethodBase original)

My guess is that something has added a need to drive a toil task, but it has no name. I'm thinking this is vanilla psycasters. If you have any guesses please share.