Unable to Jupyter sync project directories with python environments on macOS

I am having trouble opening Jupyter notebooks created on one macOS computer (source) on another macOS computer (target) synced through Dropbox.  The Dropbox app on the target computer shows that all files are up to date.  The Dropbox app on the source computer, however, lists six folders that have not synced correctly which are all tied to python projects and (it appears) the virtual environments associated with those projects.  Specifically, the folders identified as failing to sync on the source machine are 'python', 'python3', 'python3.9', 'myenv', and 'bin', and a python project directory.  Clicking to view any of these directories, however, directs me to the Dropbox.app in the macOS Applications directory. 

I discovered this issue from trying to open a jupyter notebook on the target machine that is not (obviously) in any of these directories, however.  This notebook was created on source computer but cannot be opened from the synced directory on the target computer.  However, I am able to send a version of the notebook saved on the source computer through another channel and open and run the notebook on the target computer. 

Any guidance or help would be very much appreciated.