1. Install inheritance-plugin and NUnit plugin
2. Create new job of type inheritence
3. Add a post build action to publish NUnit report
4. Click save
A loading spinner will appear but the job will never save. If you try to access the job from another tab the same thing occurs. The job is unrecoverable from the GUI, must delete the plugin manually from XML.
I don't know which of the 2 plugins is causing this but I can't replicate with any other publisher.