Thanks @mborzecki, you helped out a lot. Now I know what to do going forward. Also, based on your post, I was able to determine exactly what the problem was and the fix. See: Gnome-3-34 extension and Python segfault
Basically, this needs to be set:
environment:
PYTHONPATH: $SNAP_DESKTOP_RUNTIME/usr/lib/python3.6/site-packages
Running version 7.1 w/o issues right now.