Oxygen Not included crashing.

Oxygen not included, crashing with and without mods, after random number of cycles. 

i have tested to see if this is with active pending actions like building or mopping, even to the point where i tried leaving the dupes to fend for themselves, regardless it is resulting in a crash error message. 

At this time I have done the following to verify that it was not a windows and or a graphics driver issue:

• uninstalled and reinstalled ONI
• Reinstalled steam
• Reinstalled graphics drivers
• Deleted windows and installed to a blank hard drive.

The below message is what the error screen displayed when the game crashes, 

this did not start till about the time the prehistoric pack was added to the game, I've tried turning it off, but the crashes are still occurring.

NullReferenceException: Object reference not set to an instance of an object

Edible.OnTickConsume (WorkerBase worker, System.Single dt) (at <de400b4adfd7413aba747f509f69c810>:0)
Edible.OnWorkTick (WorkerBase worker, System.Single dt) (at <de400b4adfd7413aba747f509f69c810>:0)
Workable.WorkTick (WorkerBase worker, System.Single dt) (at <de400b4adfd7413aba747f509f69c810>:0)
StandardWorker.Work (System.Single dt) (at <de400b4adfd7413aba747f509f69c810>:0)
GameStateMachine`4+State+<>c__DisplayClass92_0[StateMachineType,StateMachineInstanceType,MasterType,DefType].<ToggleWork>b__1 (StateMachineInstanceType smi, System.Single dt) (at <de400b4adfd7413aba747f509f69c810>:0)
BucketUpdater`1[DataType].Update (DataType data, System.Single dt) (at <9dbd2ddc6e904050808ea00cdae92652>:0)
UpdateBucketWithUpdater`1[DataType].Update (System.Single dt) (at <9dbd2ddc6e904050808ea00cdae92652>:0)
StateMachineUpdater+BucketGroup.AdvanceOneSubTick (System.Single dt) (at <9dbd2ddc6e904050808ea00cdae92652>:0)
StateMachineUpdater.AdvanceOneSimSubTick () (at <9dbd2ddc6e904050808ea00cdae92652>:0)
Game.SimEveryTick (System.Single dt) (at <de400b4adfd7413aba747f509f69c810>:0)
Game.Update () (at <de400b4adfd7413aba747f509f69c810>:0)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
LogCatcher:UnityEngine.ILogHandler.LogException(Exception, Object)
UnityEngine.Debug:CallOverridenDebugHandler(Exception, Object)

Build: U56-675600-SCRP