You may experience issues while working with Jupyter Notebooks and Neptune. The following presents possible solutions to some of the issues.
Enable extension for your Jupyter:
jupyter nbextension enable --py neptune-notebooks
In Jupyter, click Connect to Neptune.
Bottom drop-down is your current project.
Log in to Neptune.
In the upper right corner of the UI, click the avatar, and then click Get API Token to copy the token to the clipboard.
Most likely, you restarted the kernel.
If that is the case, the experiments are not associated with the notebook.
In Jupyter, click Activate.