It set me back now that I'm at the end of it, but in the middle of the course it wasn't reflecting my evolution at all. A much needed improvement!
Update on September 19th
Further... away! I've submitted my course assessment already, but that bar won't go green. Oh, well.
Last update on September 23rd
By now I have received my certificate, but the progress bar was still far from filling all the way up. What I expected to be a bug, ended up turning into a series of progress bar iterations I managed to capture.