Freezes!

Nice app but often screen freezes when I change map magnitude on my iPad mini with iOS 7.0.4. Stars map remains still, just menu works a bit. I have to kill SkySafari 4 plus and run it again.

MacFanBoy2 about SkySafari 4 Plus: Map the Universe! Discover Sun, Moon, Mars, Stars, Planets, and Satellites with your telescope and NASA space missions!, v4.0.1