Perguntas de entrevista de vagas de Android Engineer da empresa Lab49

Interviewed for a contract role I believe. I was requested to do a take-home assignment that was fairly involved with a complex iOS-like design. It said it would take around 4 hours but it took a lot more than that, mostly because of the camera permissions and setup. I was specifically told I would get feedback on the app but never did. I was requested to do another interview after submittal but it was cancelled suddenly off of my calendar and then I received a rejection notice without reason given. Pretty much a waste of time.