Mysterious `StackOverFlow` error with type constructor when using `PyPlot` in conjunction with `Reduce`

That sure describes the process I had in mind for isolating it down further as well. I’ve got other things to do in life, what I post here is more of a public reminder to myself and others for centering in on the issue. When I’m not worried about other things I might narrow it down further, but since this is a public discussion, others are welcome to provide feedback.