Image zoom does not work (edit: user problem, please ignore)

-- EDIT: Despite my attempt at testing the issue before making the post, it appears the issue was entirely me and not the app. Image zoom is working flawlessly. --

Before the most recent update, it was possible to zoom in on an image post. It was a useful feature for multi-panel comics and images with a lot of text. It appears that the fix for blurry text in images may have unwittingly broken the zoom function.

/edit: I'm using the newest update of the android app from Google Play store