Runtime error in Bloch Sphere and Wigner function animation tutorial

[hellmersjl3ds]

Getting message "The animation function must return a sequence of Artist objects" when doing the plot_animation.

QuTiP 4.1.0
Numpy 1.11.3
SciPy 0.18.1
matplotlib 2.0.0
Cython 0.25.2
IPython 5.1.0
Python 3.6.0 |Anaconda 4.3.1 (64-bit)| (default, Dec 23 2016, 12:22:00) [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)]
OS posix [linux]

[pranavm1502]

I have the same problem in Windows7. However the new example code in 4.2 documentation works after removing blit=True as mentioned on stackexchange