I've been playing on the PC since I got my key from my Kickstarter backing. In the past couple days, I've had issues with right-click to zoom. It works for my hand, my constructs, the event, and the mystic row. However, it just does absolutely nothing on the center row cards.This is really frustrating for me, since the resolution is such on PC that I can't actually read cards that well without zooming, and I don't know the non-CotG cards well enough to play without having to zoom.
EDIT: I tried uninstalling and reinstalling, right click-zoom still doesn't work on center row.