Download as PDF returns truncated PDF and same PDF is downloaded even if ipynb is modified

[moorepants]

I tried downloading the Washing Machine notebook as a PDF and it returns only 2 pages. If I download the LaTeX source, it has errors finding the images listed in the markdown cells. But you can compile the document fully by pressing enter at the errors. This gives a full PDF with missing images. The first missing image is at the top of page 3, so I suspect this issue is causing problems:

jupyter/nbconvert#552

But, I also tried to use IPython.display.Image instead, but after saving the IPYNB file, the download as latex and download as PDF still return the same files pre-updates and saves. That's more confusing.