Python / Jupyter Notebook Slide buttons gone?

I am using Jupyter Notebook to build slides. Until yesterday there were two buttons right from the CellToolBar button to start the slide show (one button was RISE.js). All of the sudden these buttons are gone. Now there are no buttons on the right side of the CellToolBar button at all.

I tried conda update jupyter and conda update -c damianavila82 rise using the terminal. But I get the message # All requested packages already installed. So the issue appears to be somewhere else.

Does anyone know what I could do to restore the buttons?

I am on a mac
The version of the jupyter notebook server is 4.3.1
RISE version is 4.0.0b1
Anaconda is 4.3.0
Python 3.5.2

Thanks!

Solution

please check your nbextensions

http://localhost:8888/nbextensions?nbextension=rise/main

Some nbextensions like RISE get disabled automatically (e.g. if there could be issues with compatibilities, e.g. after updates).