Boolean Modifier results in artifacts I am decided to design a simple car wheel today. It is not meant to be realistic or anything like that; I am just making it for fun. At the center of the wheel, there are supposed to be 5 indentations for lug nuts. I am attempting to cut these in using the Boolean modifier. However, several artifacts appear when doing so. I uploaded a video to YouTube which shows these artifacts, and also provides more information about the whole situation. Please watch to the end.

https://youtu.be/lSZPen6HFE8

Thank you for any help you can provide.

EDIT: Here is a link to my .blend file: https://drive.google.com/file/d/1cocemui28Ql0XiKsitS77Nfk72j1CTLb/view?usp=sharing
It can be several issues with Booleons, sometimes can be the underlying geometry you are cutting into, can you provide screen of the wireframe of the wheel, also can be worth turning on auto smooth. Will await screenshot of wire.

its fine for me with auto smooth ticked under object properties.