iPad iOS 7 bug? Three-liner text in push notifications overlap the pull-down indicator
This bug also occurs on my iPhone 4 running iOS 7.1.2. I think it's a common bug.

I speculate in iOS 7, developers weren't able to send more than 2-line push notifications but in iOS 8 the feature was added iOS 7 devices also got these bigger notifications, resulting in unexpectedly large pushes (Apple stopped development of iOS 7 several years ago).