I want to take a screenshot of part of my screen. I select "Area: Rectangular Region", I mark the region of the screen I want to capture, I press enter, I see entirely different region showed in Spectacle as the captured one. Might have something to do with hidpi and coords mapping being wrong. I dunno. Reproducible: Always
This works fine testing with 17.12.0. Possibly one of the commits in Bug 357022 fixed it.