I use my iPad exclusively in landscape mode, specifically in the landscape position that the standard iPad covers are designed to position the device. So if an app doesnt operate in this orientation then it gets deleted and re-evaluated at the next release. This is one of those apps that seems to be stuck in the upside down landscape mode. I tried unlocking the orientation button and turning the iPad, restarting the app, etc.
Bottom line, as stated, deleted pending a review after the next release. SIGH
_KEM_ about Hardcover Pro