How to leave unknown cookies not deleted by default?

CookieScript scans your website and groups cookies by categories using our database of cookies. Then, all cookies from cookie declaration are handled according to their category. For example, if you checked to keep just strictly necessary cookies, only strictly necessary cookies will remain active, other cookies will be deleted by default.

All unknown cookies are deleted by default. To keep unknown cookies, in the banner Settings, go to Behavior tab and check to Keep unknown cookies.

If the cookie was not found during the scanning process, it is treated as an unknown cookie and with this checked option the unknown cookie will not be deleted.

Please see more information here.