IBooks page goes black
Recently my iBooks page has gone black, generally on the first page. Has any one got a solution please?
iPad 2, iOS 9.3.4
I'm getting the same thing but on page 153 of a 300 page instruction manual. The page just turned completely black for some reason. If I tap and hold on the page I can scan around with what appears to be a white circle and I can see the text behind it. Is this some new accessibility feature? If so, how do I turn it off?