Forum Responsiveness results do not match Threads With No Response

The Analytics- Forum Responsiveness widget seems to be including null/failed threads in the results. The forum is setup as a “Questions” forum and the widget is configured to only look at “Question Threads” however when comparing Total Threads with No Responses to the Analytics-Threads With No Response widget the numbers do not match. 

Threads With No Response shows 1 thread when filtering on Question Threads. Under Forum Responsiveness, there are 8 threads with No Response and it's config'd to only look at Question Threads. Re screenshots

Screenshot of Forum Responsiveness Config.

If the Forum is setup as a Question forum why does it appear to be pulling in Discussion thread results? 

We are on Version: 8.5