I'm playing Rimworld with 5+ Mods and after some time prisoners stop doing anything (standing at the same point doing really nothing) and how I said in the title they don't loose need stats (Rest, Eat and more). They have to mine the quarry
for resources. I turned on that they don't need motivation and doesn't break out and suicide.
My only option to fix them is (im using Empire mod) send them to a settlement and send them back to me but after some time the bug happens again (It's not only one prisoners no all prisoners have that problem).

Would be cool if anyone knows how to fix that :)

I got the logs that are spamming my console full (Dan is a prisoner):

Exception ticking Dan (at (105, 0, 155)): System.NullReferenceException: Object reference not set to an instance of an object
at Verse.Pawn_RotationTracker.UpdateRotation () [0x000ee] in <0ee2c524c4be441e9b7f8bfcb20aca6f>:0
at Verse.Pawn_RotationTracker.RotationTrackerTick () [0x00000] in <0ee2c524c4be441e9b7f8bfcb20aca6f>:0
at (wrapper dynamic-method) Verse.Pawn.DMD<DMD<Tick_Patch1>?1536637440::Tick_Patch1>(Verse.Pawn)
at Verse.TickList.Tick () [0x0015c] in <0ee2c524c4be441e9b7f8bfcb20aca6f>:0
Verse.Log:DMD<DMD<Error_Patch1>?-2047706112::Error_Patch1>(String, Boolean)
Verse.TickList:Tick()
Verse.TickManager:DoSingleTick()
Verse.TickManager:TickManagerUpdate()
Verse.Game:UpdatePlay()
Verse.Root_Play:Update()