Public project but issues are not visible

hi there!

I am trying to add some transparency to our github project workflows. So I created a public project, hoping to share its link with our group members (none of who have github accounts). I have added issues from our repo into the board. But these issues do not show any info in the public view. Instead it shows something like this:

You can’t see this card
This card references something you don’t have access to.

This is prob a permissions issue (since our repo is private) but is there any way to display basic issue title info on the public view of the project? If not possible, is there any purpose for making a public project with a private repository?

Thanks!