[Description of the bug or feature.]

A "Minimal, Complete and Verifiable Example" will make it much easier for maintainers to help you.

# your code here
# we should be able to copy-paste this into python and exactly reproduce your bug

Expected behavior: [What you expected to happen]

Actual behavior: [What actually happened]

Please try to make sure this bug is related to a proplot-specific feature. If you're not sure, try to replicate it with the native matplotlib API. Matplotlib bugs belong on the matplotlib github page.

# your code here, if applicable
import matplotlib.pyplot as plt

Paste the results of import matplotlib; print(matplotlib.__version__); import proplot; print(proplot.version) here.