System.Exception: FuelFlowSimulation hit max steps of 100 steps in rcs calculations

[cqusmc]

I was doing a moderately modded playthrough and noticed that sometimes the MJ Delta-V Stats readout would go blank or become unresponsive and determined it was due to exception spam. I was able to reproduce the issue in a stock game by doing the following:

• Stock KSP along with its DLCs and MJ2 Dev Release v1412

• New sandbox save with default game settings

• In the VAB, place a probe core -> decoupler -> RCS fuel tank

• Place MechJeb controller anywhere

• Place RCS thruster anywhere on the fuel tank, there should be no issues
  

• Move RCS thruster from fuel tank to probe core, exception spam
  

[LOG 21:27:59.628] [MechJeb2] Exception in MechJebLib.FuelFlowSimulation.FuelFlowSimulation: System.AggregateException: One or more errors occurred. ---> System.Exception: FuelFlowSimulation hit max steps of 100 steps in rcs calculations
  at MechJebLib.FuelFlowSimulation.FuelFlowSimulation.SimulateRCS (MechJebLib.FuelFlowSimulation.SimVessel vessel, System.Boolean max) [0x0004a] in <e93531f616a24ea79e504d8e78faccbb>:0 
  at MechJebLib.FuelFlowSimulation.FuelFlowSimulation.ComputeRcsMinValues (MechJebLib.FuelFlowSimulation.SimVessel vessel) [0x00000] in <e93531f616a24ea79e504d8e78faccbb>:0 
  at MechJebLib.FuelFlowSimulation.FuelFlowSimulation.SimulateStage (MechJebLib.FuelFlowSimulation.SimVessel vessel) [0x0001e] in <e93531f616a24ea79e504d8e78faccbb>:0 
  at MechJebLib.FuelFlowSimulation.FuelFlowSimulation.Run (System.Object o) [0x00043] in <e93531f616a24ea79e504d8e78faccbb>:0 
  at System.Threading.Tasks.Task`1[TResult].InnerInvoke () [0x0002b] in <9577ac7a62ef43179789031239ba8798>:0 
  at System.Threading.Tasks.Task.Execute () [0x00010] in <9577ac7a62ef43179789031239ba8798>:0

[lamont-granquist]

possibly a dup of #1905