Hi there, @maguire ...
So I just tested this out in my own sandbox course, and I got similar results. You are correct that it does seem a bit odd that the course link validator would kick back a message like that when a link is pointing to a "public" course. I'm not sure if I would really consider this a bug or not...to be honest. Sometimes "public" courses have enrollments in them...other times, "public" courses might just house informational content that you want anyone to have access to ... and therefore you don't really need to have enrollments in the course ... as long as they have the link to the "public" course. (This is what we do with a few of our Canvas course shells where we have a "Faculty Toolkit" course and a "Student Toolkit" course that provides them with all kinds of Canvas-related resources.) So, even though you and I are both getting this message in the validator, I think it's something that we can ignore for now...knowing that the link is what it needs to be. But, I do understand why it would be nice not to see it there in the list of potential links with issues.
Hope this helps a bit! Take care...
This discussion post is outdated and has been archived. Please use the Community question forums and official documentation for the most current and accurate information.