Me and my friend were messing around on our private shard exploring the new features and both were killed, in separate occasions, by what appears to be an invisible zombie in elektro. When it killed me it started attacking me on the second floor of a house, i could hear him but not see him. I figured he was clipped through the floor. I ran outside and continued to get pummeled to death and he never became visible. I swung my axe in 360 degrees around me and hit nothing but air.

It wasn't in the air above me and i couldnt see it clipped through the ground.