USD.command - "/Applications/usdpython/USD.command ; exit;"

For some reason when i double click the USD.command tool terminal responds with "/Applications/usdpython/USD.command ; exit;"

Anyone know why "; exit;" is being appended to the end and quitting? This is a fresh install and Ive never had this happen before, very very frustrating. Just spent the last 2 hours trying to adjust my PYTHONPATH etc etc and to get this thing working urggghhh.

zsh is linking to python3.8.3.