I am trying my hand at Lesson 1 substituting Men vs. Women in place of Dogs vs. Cats. I have run everything from lesson1.ipynb on a new file on my paperspace machine and seem to have a solid 80% accuracy rate using only 100 total images (60 Men && 60 Women Train, 20 Men && 20 Women Valid, 20 Men && 20 Women Test).
My question is what did I do wrong with the learning rate. In  : learn.sched.plot_lr() on my notebook shows a straight line. There is no slope like shown In  lesson1.ipynb. Further, my In : learn.sched.plot() shows nothing. There is no plotted line (loss vs LR). This has me now questioning my supposed 80% accuracy. It doesnt make sense to me after watching Lesson 1 to have any accurate model if I cannot discern an accurate-ish learning rate.
I posted an image of my workbook on imagebin: