Hi all! Sorry this thread got overlooked somehow for so long!
It looks like this is referring to C1W4 of the Deep Learning Specialization, so I will move it to the right course (this is the Tensorflow Advanced Techniques specialization).
But… the problem you are seeing looks like a Coursera issue that we are seeing in several of the specializations. There is a workaround:
- Temporarily rename your notebook
- Choose “Get latest version” from the help menu
- Rename your notebook back to the original name
You can see other posts in the DLS category about this issue, like this one: