Issue regarding grading

I’ve been mentoring in the various DeepLearning specializations for over 5 years, and the number of times when it turns out that the problem is in fact a bug in the grading system is very, very small. Much more likely is a procedural mistake like submitting an old model (one that didn’t pass the local tests, was revised, but not saved and submitted). Or a coding bug like hard coding some parameters so that it works when called in your local code but fails to meet thresholds when run with different parameters or data. Remember, passing local unit tests means only that, you passed local unit tests. It doesn’t prove the code is ‘correct’. Treat the fact that it runs one way in one environment but differently elsewhere as your first clue :man_detective:

You should also try searching…

https://community.deeplearning.ai/search?context=category&context_id=192&q=MSE&skip_context=false

and look especially at threads showing a :white_check_mark:

Notice that this one reports exactly the same failed grader outputs you do