PC - Weird floating thing behind survivor's back

Lenny197

https://youtu.be/ITefYFbmVM4?si=TsePX3vTGpZik9gx&t=21 https://youtu.be/OgxqTZo1EH8?si=RG5QBzvp29geSxix&t=4

When a survivor is viewed through aura there seems to be something floating behind their back. I saw this many times on Saga because my friend was playing her