Updated ATV and iPad now can no longer mirror from iPad to TV.

I did the iOS 8.1.2 update and my ATV has the latest update.. After doing this I can no longer mirror my iPad to the ATV and get video to play, sound is working.this happen when trying to watch my ip cam live. Also just about anything else that doesn't have the ATV that I can click on, like my photos I can't see buy my videos I recorded on the iPad from the ip cam plays. Everything worked fine before the updates.