Mark As Read/Unread

In Devonthink 3 is Mark As Read/Mark as Unread back to front ?

For example if I go into one of my RSS feeds and want to mark them all as read. I Right Click → Mark → As Unread. This action actually marks them all as read.

If I then subsequently Right Click --. Mark → As Read…it turns them all to unread.

I couldn’t reproduce this issue, please post a screenshot of the selection and the contextual menu. By the way, the checkbox in the Mark contextual menu is actually a bug.