I have a problem that I have not been able to solve by a web search. On my Ipad 3 if I watch some videos on Facebook and an ad comes up the video will not finish. The ad does not start and I can't get back to the video. This seems to happen with about 50% of the videos. I am wondering if it has something to do with the ads that I have blocked in the past. I don't have an ad blocking app or a setting that should be blocking ads. Any Ideas?