Hello Deepti,
thank you for your reply.
yes. i can understand. but i am thinking either there is a huge bug in the course or i am doing something wrong, which i can not figure out. I have followed all the exact steps from assignment and verify it with the result from the assignment.
but my model is noway where near to overfit. it is simply not learning. I never had such a issue before.
I passed the assignment. but i am not happy with replicating the same thing. if it is issue from the assignment then it must be corrected (it is fine, if they do not update course). from the previous bug like this link. It seems that they never run the this script to train the model, otherwise they would have caught it just by running model.fit_generator().
if you have time, then it would be nice, if you could simply look over the assignment or my code. maybe you will easily detect the issue.
BR,
Vivek