[Notebook](https://github.com/aws/amazon-sagemaker-examples/blob/default/%20%20%20%20%20deploy_and_monitor/sm-xgboost_bring_your_own_model/sm-xgboost_bring_your_own_model.ipynb) **Describe the bug** 502 Bad Gateway response from endpoint. **To reproduce** Run each cell in order to load data, train model and persist to endpoint. Running in East Us 2 region. **Logs** 
