My Apple Pencil is not hoovering on my iPad Pro

I have iPad pro, fourth generation, 11 inch and Apple Pencil second generation. My iPad is up to date, which means I have been continuously downloading every update. One thing came to my notice yesterday that my Apple Pencil is not hoovering on my iPad Pro. There is no hardware problem in my Apple Pencil, neither in my iPad. Before this problem, I remember that this feature was working, but now it isn’t. I even tried setting name, reduce motion, which I turned off and thought that it might work, but still after that, it isn’t working now. What should I do? I don’t know.

[Re-Titled by Moderator]