(8.0, open source edition)
The link to the Contact List that appears on both the "All Campaigns" page (/index.php/marketing) and inside of a Campaign itself (e.g. /index.php/marketing/2) is incorrect. In my case my Campaign #2 is supposed to use Contact List #2, and the URL should be:
however on both of the above pages the link generated is:
which gives a 404 error.
The links on the All Contacts List are fine.