I was using Plots 1.9.1.
Some good (and strange) news: I manually updated and rebuilt PyCall and PyPlot via package manager, and even though the return message noted that no changes were made during the update process, it seems to have resolved to issue. I’m now using Plots 1.9.1, PyCall 1.92.1, and PyPlot 2.9.0, for anyone else who may have had this issue.
Thanks for the troubleshooting!
