Bug report

Bug summary

A figure created on Mac with the MacOSX backend on one screen gets blank when the figure window is dragged to another screen attached to the same computer.

Code for reproduction

import matplotlib as mpl
mpl.rcParams["backend"] = "MacOSX"
from matplotlib import pyplot as plt

plt.figure()
plt.plot([0,1],[0,1]) # to have some content
plt.show()
# now drag figure from one screen attached to the computer to another screen attached to the computer

Actual outcome

Matplotlib version

System: MacOS El Capitan
Matplotlib version: 2.0.0
Python version: 2.7.10 (System Python)

Matplotlib was installed with pip.