If a certain user on our SharePoint tries to publish a small nintex workflow (where it doesn't contain many options), it will work.
However, if they try to publish a large workflow (where it has several paths/options) it asks for their login three times (they will enter their username/password correctly all three times) and then the box shows that says the workflow was published. When you view the workflow it shows the time, date, and even the person who published the workflow last all correctly (as if publishing it had really worked). However, when you run the workflow, it uses the old published workflow instead of the new one. The same user has tried to publish the workflow several times in a row and it never works.