I played with projectiles and when i shooted an arrow upwards and the arrow tried to hit me while i am in creative mode, the arrow stuck floating on me and because of the movement of it, activates the skulk sensor every time it can. I'm not sure if it is a bug, but i felt that i need to report it.
i tried to upload a video but it is to big for the report, so i did it on you tube: https://youtu.be/IVfZg0NRx6Q
Can confirm.