This update seems to be loaded with bugs. It seems that some people have zero problems and like it but many report the same issues you are having. You could try making a good backup first, then wipe your phone clean, and then reload your old OS and apps. Or you could just use DM and reload the old OS which is what I did. There are other threads on other forums (do a Google Search) and you can make a decision on what you want to do. Personally I went back to .428 and things work well again.