Players getting kicked when trying to issue commands to the new frankenstein monsters

Could you provide the full error?

Converting prefab name to lowercase: assets/rust.ai/agents/NPCPlayer/pet/frankensteinpet_corpse.prefab 
7379787[7379787] was killed by wolf (Wolf)
NullReferenceException
  at (wrapper managed-to-native) UnityEngine.Component.get_transform(UnityEngine.Component)
  at BaseNavigator.SetCurrentNavigationType (BaseNavigator+NavigationType navType) [0x00008] in <9de5dffda4cd4ac083c5a63ec97c4429>:0 
  at BaseNavigator.Stop () [0x00033] in <9de5dffda4cd4ac083c5a63ec97c4429>:0 
  at FrankensteinBrain+MoveTorwardsState.Stop () [0x0000b] in <9de5dffda4cd4ac083c5a63ec97c4429>:0 
  at FrankensteinBrain+MoveTorwardsState.StateLeave () [0x00006] in <9de5dffda4cd4ac083c5a63ec97c4429>:0 
  at BaseAIBrain`1[T].SwitchToState (BaseAIBrain`1+BasicAIState[T] newState, System.Int32 stateContainerID) [0x0003d] in <9de5dffda4cd4ac083c5a63ec97c4429>:0 
  at BaseAIBrain`1[T].SwitchToState (AIState newState, System.Int32 stateContainerID) [0x0001b] in <9de5dffda4cd4ac083c5a63ec97c4429>:0 
  at BaseAIBrain`1[T].LoadAIDesign (ProtoBuf.AIDesign design, BasePlayer player, System.Int32 index) [0x00099] in <9de5dffda4cd4ac083c5a63ec97c4429>:0 
  at BaseAIBrain`1[T].IssuePetCommand (PetCommandType cmd, System.Int32 param, System.Nullable`1[T] ray) [0x000aa] in <9de5dffda4cd4ac083c5a63ec97c4429>:0 
  at BasePlayer.ParsePetCommand (BaseEntity+RPCMessage msg, System.Boolean raycast) [0x00087] in <9de5dffda4cd4ac083c5a63ec97c4429>:0 
  at BasePlayer.IssuePetCommand (BaseEntity+RPCMessage msg) [0x00000] in <9de5dffda4cd4ac083c5a63ec97c4429>:0 
  at BasePlayer.OnRpcMessage (BasePlayer player, System.UInt32 rpc, Network.Message msg) [0x00282] in <9de5dffda4cd4ac083c5a63ec97c4429>:0 
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception)
BasePlayer:OnRpcMessage(BasePlayer, UInt32, Message)
BaseEntity:SV_RPCMessage(UInt32, Message)
ServerMgr:OnRPCMessage(Message)
ServerMgr:OnNetworkMessage(Message)
Facepunch.Network.Raknet.Server:ConnectedPacket(Connection)
Facepunch.Network.Raknet.Server:Cycle()
ServerMgr:Update()