Needed to change slug to access page

Are you sure that you have deleted completely all previous pages with the slug ‘news’ ?

When you click on Trash, the page/post is only placed into the Trash folder, not deleted. You must then empty the trash folder to completely delete the page.

If the old page remains in the trash folder and you generate a new page using the identical slug WordPress will automatically change the slug to something like /news-2/ so that it can differentiate the two pages you have generated.

That is probably why you were able to access the new page using /news_/ It was a different slug from the original.