Pathauto generating weird/bad urls on a feed import

Problem/Motivation

I have a pathauto pattern that works like this... /news/[node:title]
This works for any user created content and most items imported via a json/csv feed. (I do import the title of the item)
but sometimes I get results with urls like this: https://sitename/admin/-6250 not sure why.

Steps to reproduce

1. Import the feed.
2. Weird urls are generated... sometimes

Proposed resolution

Pathauto should take the url pattern and follow it..

Remaining tasks

User interface changes

API changes

Data model changes