Express Link https://www.galileo.usg.edu/express?inst=xxxx not routing properly

The following Express Link syntax does not work as expected.

https://www.galileo.usg.edu/express?inst=xxxx

For example, If I go to https://www.galileo.usg.edu/express?inst=soco (Oconee County Schools),

I am taken to the instructions page as expected:

But once I enter their GALILEO password, I am not authenticated and taken back to the welcome page: