Strange issue running app

Hi - In case someone comes across this and wonders where it was left. I was able to solve the problem by using a differnet strategy for loading models. I was loading a new model in every instance of the class, so instead I declared the models in a higher-level class then passed them by reference to the model classes so that I am only loading them once. Probably a better design in the end anyway. I still don't understand why it would run through XCode and not oterhwise, but since it stopped crashing I am not going to dwell on it.
Best,
MD