We built a few workflows using Nintex on a document library and suddenly - Nintex no longer identifies the any of the workflows - although if you go into workflow settings they are displayed through SharePoint, and if you navigate to workflows via the ellipsis on a document, you can manually launch the workflows.
But we can not edit them.
The Nintex Workflow app shows up in the site contents, but not on the ribbon, when I launch it, there are no workflows to edit. - see screen shots in the attached word file.
How do I get Nintex to recognize the workflows again so we can work on them?