Title
qListView prompting for login only on certain itemsDescription
Cause
This is a native SharePoint issue.Resolution
To confirm this, can you go to the native SharePoint Libraries and for one of your views enable the column "Edit (link to edit item)". When you click this button in the native SharePoint list you will get the checked out dialog box but if you hit ok to check it out nothing happens or you will be prompted for credentials the same as you did in the qListView.
There is no known Microsoft workaround at this time. Please contact Microsoft for any assistance regarding this issue.