Buggy, buggy, buggy

This app has serious problems. First after subscribing I was able to download only one issue. The next issue the app would only let me purchase. After restoring my purchases (had to do this multiple times over a few days) it now says the latest issue has been downloaded. However when I try to open it, all I get as a black screen with the circle thing indicating downloading. The downloading never ends...

Don Thompson about DISCOVER Magazine, v7.7