Severe ** DualSetPointWithDeadBand: Unanticipated combination of heating and cooling loads

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Hi,

I'm getting the above severe error and I don't know why / how to fix it. I've seen some other forum posts with the same error message, but the solutions don't appear to be relevant here.

I've attached the IDF and weather file that leads to this error:

IDF: https://drive.google.com/file/d/1bdYR...

EPW: https://drive.google.com/open?id=15YL...

And here is the resulting error message:

   ** Severe  ** DualSetPointWithDeadBand: Unanticipated combination of heating and cooling loads - report to EnergyPlus Development Team
   **   ~~~   ** occurs in Zone=THERMAL ZONE 1 Environment=RUN PERIOD 1, at Simulation time=12/31 13:00 - 13:06
   **   ~~~   ** LoadToHeatingSetPoint=NAN, LoadToCoolingSetPoint=NAN
   **   ~~~   ** Zone Heating Set-point=16.00
   **   ~~~   ** Zone Cooling Set-point=27.00
   **   ~~~   ** Zone TempDepZnLd=NAN
   **   ~~~   ** Zone TempIndZnLd=NAN
   **   ~~~   ** Zone ThermostatSetPoint=23.54
   **  Fatal  ** Program terminates due to above conditions.
   ...Summary of Errors that led to program termination:

I really have no idea what's causing this to happen. I can see it fails on the last day, which is frustrating, but doesn't help explain how to fix it.

Any ideas?

Thanks.