I have a jupyter notebook written in Julia and when I first rendered the notebook and its graphics in nbviewer, it worked perfectly fine in December 2022.

Now, none of the graphics appear properly, either dark shapes and missing plots.

This is a problem for microsoft edge and firefox, and probably all other browsers.

Link to my notebook: https://nbviewer.org/github/gracechuan2/contagion/blob/main/Network Contagion Simulations_final.ipynb

It seems to be an issue with other notebooks I found on the main page of nbviewer:
https://nbviewer.org/url/jdj.mit.edu/~stevenj/IJulia Preview.ipynb
https://nbviewer.org/github/SciRuby/sciruby-notebooks/blob/master/getting_started.ipynb

This seems to be a very significant bug so I hope it gets addressed soon!