It seems Orion has an issue with the newest version of 'click' (8.1.0): "ImportError: cannot import name 'get_terminal_size' from 'click.termui' (/home/ubuntu/orionenv/lib/python3.8/site-packages/click/termui.py)".
Downgrading 'click' to 8.0.3 (the version that I had elsewhere) made this error go away.