I am having issues with submitting the last assignment of Course 1 Week 4: DNN Application.

I have done the home twice (second time with a fresh notebook) and all tests passed apart from an error related to the a test of the two_layer_model that was referenced in the “Confusing Output from the AutoGrader” document.

All results are exactly as the expected output. I click submit, and the results don’t get updated. This has been the case for two days now (hence my restarting afresh today).

I click submit, I get the pop up saying the submission is successful, but I check the and the assignment is not updated.

What could be the issue?

The error output related to the two_layer_mdel_test (…) is shown below:

```
Cost after iteration 1: 0.6926114346158594
Cost after first iteration: 0.693049735659989
Cost after iteration 1: 0.6915746967050506
Error: Datatype mismatch. in variable 0. Got type: <class 'numpy.float64'> but expected type <class 'numpy.ndarray'>
Cost after iteration 1: 0.6915746967050506
Cost after iteration 1: 0.6915746967050506
Cost after iteration 2: 0.6524135179683452
3 Tests passed
1 Tests failed
```

After this error, all the other cells return exact results as expected.

Also, I hope there is not some issue related to when you start and finish the course, because I went through Course 1 in a few days - now stuck with submission issue for two days