Pro Sites crashing network with current NGINX.conf


I’m trying to configure Pro Sites on an NGINX install and it crashes the network under certain conditions. I’m guessing my current NGINX configs are slightly off.

Plugin installs OK.

Can find blogs by ID but not the search option.

Clicking on the upgrade link goes to

Change Payment Gateway to stripe = whole network goes down: 500 error.

Pro Sites removed and tried to reinstall but get 500 error when network activating.

Does anyone have Pro Sites working with NGINX?