We are running Nintex workflows on our 2013 farm....we also have Project Web App 2013 that has Nintex installed BUT not the PWA Nintex workflows. Is this because a 2nd license is required or is my farm admins overlooking something?
You are correct that Nintex for Project Server is a separate license. Please reach out to your Account Manager to see what can be done about that. May I recommend also having your farm admin join that call to validate what is or isn't installed and you should be able to get things corrected relatively quickly.
Thanks for using the community.