Enderman growl bug in creative

I was just testing an iron farm to see if it would work in a bedrock edition creative world and had mob spawning on and then just happened to look at an Enderman, But when i did he started growling as if i was in survival and it was also overlapping the longer i stared at him as shown in the video link- https://www.youtube.com/watch?v=z_3PnAM927U&feature=youtu.be