Running spectacles lookml --project my_project and getting following error:

Completed validation in .


Encountered unexpected RemoteProtocolError: "Server disconnected without sending a response."
Full error traceback logged to file.

For support, please create an issue at https://github.com/spectacles-ci/spectacles/issues

I'm currently trying to run this for first time in our staging Looker instance. The cmd works for our Production instance just fine. Is there some setting we need to update in our staging instance for this to work?