2 new bug(s). Hitting And Freezing

Hello, I don't know if this is supposed to be like this. But when ever I punch or hit, my screen doesn't move. I need to stop punching, move my mouse, then continue to punch. This sucks when I need to kill animals. As well as I'm sure it sucks with PVP. So Please Fix. Also My Minecraft Win 10 Beta keeps freezing... Like every 30 seconds, for 10-30 seconds at a time. SO ANNOYING