C2W2: practically impossible to complete the assignment on data augmentation

Course Q&A TensorFlow: Data and Deployment Specialization Browser-based Models with TensorFlow.js
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I am experiencing persistent technical issues with C2W2 that make it extremely difficult to complete the assignment.

The page is very slow to load from the outset, and I encounter repeated kernel crashes for no clear reason. In addition, there are frequent mysterious timeouts with the message “Invalid response: 504”, which trigger a complete page refresh. When this happens, it is impossible to interact with the notebook, and only afterwards do I realise that all my work has been lost, forcing me to redo everything from scratch.

This has happened multiple times and is quite frustrating. I wanted to check whether others are facing similar issues and whether there is any recommended workaround or fix.

Thank you.

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Sorry you’re having this issue.

I’m not a mentor for this course, but I have one suggestion that might (or might not) be useful.

The labs have known issues if the notebook file size becomes too large.

So for example, if you have added code that outputs a lot of data for diagnostics (like print(…) statements inside of for-loops), that can bloat the file size. This will make the labs very slow to load, and in some cases will stall the kernel until it times out.

So check if you have added any large data outputs, and try to minimize that.

It might help. It might not.