Example from web page runs once, stops working in restarted jupyter lab notebook

[JanDiepenbrock]

I ran the code from https://plot.ly/python/click-events/ in jupyter lab
It works fine, I can mark the points and they change their color.

If close the the jupyter lab window and start it again, I get the following error message in the anaconda prompt:

[IPKernelApp] WARNING | No such comm: f1017aced23e4d9495e2ec9e4a095da3

The error is not completely reproducable. I ran one of the examples from the notebooks here yesterday and it worked yesterday but failed to run today. I created a new notebook with the same example (https://github.com/jonmmease/plotly_ipywidget_notebooks/blob/master/notebooks/Interact.ipynb) and again, it worked, but this time it kept working even after signing out and back into jupyter lab.

conda info gives the following:

 active environment : ****
active env location : C:\Users\***\AppData\Local\Continuum\anaconda3\envs\kw_env
        shell level : 2
   user config file : C:\Users\***\.condarc

populated config files : C:\Users*.condarc
conda version : 4.7.10
conda-build version : 3.18.8
python version : 3.7.3.final.0
virtual packages :
base environment : C:\Users*\AppData\Local\Continuum\anaconda3 (writable)
channel URLs : https://repo.anaconda.com/pkgs/main/win-64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/r/win-64
https://repo.anaconda.com/pkgs/r/noarch
https://repo.anaconda.com/pkgs/msys2/win-64
https://repo.anaconda.com/pkgs/msys2/noarch
package cache : C:\Users*\AppData\Local\Continuum\anaconda3\pkgs
C:\Users*.conda\pkgs
C:\Users*\AppData\Local\conda\conda\pkgs
envs directories : C:\Users*\AppData\Local\Continuum\anaconda3\envs
C:\Users*.conda\envs
C:\Users*\AppData\Local\conda\conda\envs
platform : win-64
user-agent : conda/4.7.10 requests/2.22.0 CPython/3.7.3 Windows/10 Windows/10.0.17763
administrator : False
netrc file : None
offline mode : False

[JanDiepenbrock]

The workaround is to shut down the kernel, close the notebook, and reopen it. The interactive figures will work again.