While in the southwest end of the NWAF in the DayZ Standalone DAYZRP public server, I experienced the invisible zombie bug. I wasn't prepared for it because I had been under the impression that this bug had already been resolved some time ago. It occurred while using a silenced CR75. I was head-shot killing zombies while sneaking about looting. I missed a shot on one that was a few yards away and didn't get an instant kill. It agroed and began running towards me. I shot it a second time, this time dropping it. The body was clearly dead, but the sound continued and I was suddenly being hit by an invisible zombie. I tried shooting and an ax, but nothing connected, so ran. It continued to follow me silently, only making sound when I was struck. I eventually died from injuries sustained as I was unable to effectively shake it off. As of yet, I have not been able to recreate the event.