Jupyter notebook cannot find arcgis module

[Oliver_Burdekin]

I'm trying to run the arcgis API in jupyter. I have installed ArcGIS 2.4 (upgraded from 2.3). Checking my Python packages through ArcGIS pro I can see arcgis package is installed. When I open the Python Command Prompt the default environment is activated (arcgispro-py3).

Typing "jupyter notebook" launches jupyter and I can see the tree in my browser. When I try to import the API I get the following:

I have tried cloning my default environment within ArcGIS Pro and updating the arcgis package using conda. However, in the cloned environment the problem persists.

I suspect it may be a problem with my environment paths. Any help apprectiated.