I teach a building systems course. Last year, my students and I used OpenStudio 1.1.0 and SketchUp 8 successfully. SketchUp was updated in the lab to 2014, so we downloaded OpenStudio 1.5.0. We are using the same workflow this year that we successfully used last year. The energy simulation runs, but the results are garbage (i.e. random amounts of electricity assigned to various uses, some months with no electrical use at all, gas heat in June and July only). The simulation notes no errors and a varying number of warnings, none of which seem to be fatal. Any ideas?