This is my attempt to recreate the issue of image directives not working properly in Sphinx by creating a project that is structured the same general way my production project is structured.
My production code is called from root, with modules living in packages.
My documentation lives in a docs directory, the same as presented here.
I use a virtual emvironment, same as here.
I use a great many more libraries than are used here.
I'm using Python 3.8.2