A Nintex Workflow for Project Server license displays a message stating:
The Nintex Workflow for Project Server license type does not match the Nintex Workflow license type. Please contact firstname.lastname@example.org to obtain a new license
Reach out to email@example.com or firstname.lastname@example.org to make the licensing types match between the two licenses. For example, in a Development environment, the 'License Type' property must be 'Development' on both licenses.