Private issues visible in the roadmap
I have created a couple of private issues and I test who could see it. This works correctly, the person to who I have assigned the private issues is th only one who sees them. I checked in the activity of other users and correctly, nothing is displayed. Then I create a roadmap and I inserted these 2 issues. The issues are displayed in the roadmap but shown only if you are the owner of the issues or the assignee.
I do not know if this was done on purpose or if it is a bug but I think itis not really clear ... at the first glance it can be interpreted as a bug.
My solution would be as in all the other tabs - Activity, Issues, etc. there are not shown,, so I would keep consistency and not show them also in the road map ... so definitely like this is a private issue.