Pawn can't perform any jobs, started after coming back from outpost defense, pawn uses a chain shotgun. Saving and loading, restarting, drafting and undrafting, and various combinations of said things do not help.

Exception ticking Wolverine (at (99, 0, 116)): System.NullReferenceException: Object reference not set to an instance of an object
at RimWorld.Verb_MeleeAttack.TryCastShot () [0x00062] in <f51597c720ac4bec9b4bfc9070cc723e>:0
at (wrapper dynamic-method) Verse.Verb.Verse.Verb.TryCastNextBurstShot_Patch1(Verse.Verb)
at Verse.Verb.VerbTick () [0x00055] in <f51597c720ac4bec9b4bfc9070cc723e>:0
at Verse.VerbTracker.VerbsTick () [0x00019] in <f51597c720ac4bec9b4bfc9070cc723e>:0
at Verse.Pawn.Tick () [0x00074] in <f51597c720ac4bec9b4bfc9070cc723e>:0
at Verse.TickList.Tick () [0x0015c] in <f51597c720ac4bec9b4bfc9070cc723e>:0
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Error (string)
Verse.TickList:Tick ()
(wrapper dynamic-method) Verse.TickManager:Verse.TickManager.DoSingleTick_Patch1 (Verse.TickManager)
Verse.TickManager:TickManagerUpdate ()
(wrapper dynamic-method) Verse.Game:Verse.Game.UpdatePlay_Patch2 (Verse.Game)
Verse.Root_Play:Update ()