This bug was not happening yesterday but today it has started (yes I have tried relogging onto servers and trying other servers it remains a problem). What happens is the item in a players hand is invisible so it would appear people are placing blocks with their bare hands and dealing 7 attack damage with their fists. This is very annoying in pvp based games since I have to work out what weapon someone has by the damage they are dealing which could mean I die because I thought they had the same weapon as me. It's a new bug however I'm already sick of it and will not leave it be for a year like I did the bow-arm glitch.