>
Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object
  at (wrapper remoting-invoke-with-check) System.Threading.EventWaitHandle:Set ()
  at System.Threading.Tasks.Task.HandleGenericException (System.AggregateException e) [0x00000] in <filename unknown>:0 
  at System.Threading.Tasks.Task.HandleGenericException (System.Exception e) [0x00000] in <filename unknown>:0 
  at System.Threading.Tasks.Task.ThreadStart () [0x00000] in <filename unknown>:0 
  at System.Threading.Tasks.Task.Execute () [0x00000] in <filename unknown>:0 
  at System.Threading.Tasks.TpScheduler.TaskExecuterCallback (System.Object obj) [0x00000] in <filename unknown>:0 

Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object
  at BEPUphysics.BroadPhaseEntries.Events.ContactEventManager`1[BEPUphysics.BroadPhaseEntries.MobileCollidables.EntityCollidable]..ctor (BEPUphysics.BroadPhaseEntries.MobileCollidables.EntityCollidable owner) [0x00000] in <filename unknown>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object
  at BEPUphysics.BroadPhaseEntries.Events.ContactEventManager`1[BEPUphysics.BroadPhaseEntries.MobileCollidables.EntityCollidable]..ctor (BEPUphysics.BroadPhaseEntries.MobileCollidables.EntityCollidable owner) [0x00000] in <filename unknown>:0